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Finding the Fourth Proportional to 118,312.20, 177,597.90 and 65,824.20

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Solution

The fourth proportional to 118,312.20, 177,597.90 and 65,824.20 is: 98,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,312.20 : 177,597.90 = 65,824.20 : x
  2. Step 2: Convert to fraction form
    118,312.20/177,597.90 = 65,824.20/x
  3. Step 3: Cross multiply
    118,312.20x = 177,597.90 × 65,824.20
  4. Step 4: Simplify right side
    118,312.20x = 11,690,239,689.18
  5. Step 5: Solve for x
    x = 11,690,239,689.18/118,312.20
  6. Step 6: Final answer
    x = 98,808.40

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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.