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Finding the Fourth Proportional to 70,168.50, 96,911.01 and 54,443.70

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Solution

The fourth proportional to 70,168.50, 96,911.01 and 54,443.70 is: 75,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,168.50 : 96,911.01 = 54,443.70 : x
  2. Step 2: Convert to fraction form
    70,168.50/96,911.01 = 54,443.70/x
  3. Step 3: Cross multiply
    70,168.50x = 96,911.01 × 54,443.70
  4. Step 4: Simplify right side
    70,168.50x = 5,276,193,955.14
  5. Step 5: Solve for x
    x = 5,276,193,955.14/70,168.50
  6. Step 6: Final answer
    x = 75,193.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.