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Finding the Fourth Proportional to 70,956,744.80, 106,435,117.20 and 25,512,634.40

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Solution

The fourth proportional to 70,956,744.80, 106,435,117.20 and 25,512,634.40 is: 38,268,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,956,744.80 : 106,435,117.20 = 25,512,634.40 : x
  2. Step 2: Convert to fraction form
    70,956,744.80/106,435,117.20 = 25,512,634.40/x
  3. Step 3: Cross multiply
    70,956,744.80x = 106,435,117.20 × 25,512,634.40
  4. Step 4: Simplify right side
    70,956,744.80x = 2,715,440,232,444,751.50
  5. Step 5: Solve for x
    x = 2,715,440,232,444,751.50/70,956,744.80
  6. Step 6: Final answer
    x = 38,268,951.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.