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Finding the Fourth Proportional to 66,730,695.60, 100,096,043.40 and 52,397,972.40

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Solution

The fourth proportional to 66,730,695.60, 100,096,043.40 and 52,397,972.40 is: 78,596,958.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,730,695.60 : 100,096,043.40 = 52,397,972.40 : x
  2. Step 2: Convert to fraction form
    66,730,695.60/100,096,043.40 = 52,397,972.40/x
  3. Step 3: Cross multiply
    66,730,695.60x = 100,096,043.40 × 52,397,972.40
  4. Step 4: Simplify right side
    66,730,695.60x = 5,244,829,719,422,402
  5. Step 5: Solve for x
    x = 5,244,829,719,422,402/66,730,695.60
  6. Step 6: Final answer
    x = 78,596,958.60

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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.