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Finding the Fourth Proportional to 67,068,470.80, 100,602,706.20 and 36,457,469.20

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Solution

The fourth proportional to 67,068,470.80, 100,602,706.20 and 36,457,469.20 is: 54,686,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,470.80 : 100,602,706.20 = 36,457,469.20 : x
  2. Step 2: Convert to fraction form
    67,068,470.80/100,602,706.20 = 36,457,469.20/x
  3. Step 3: Cross multiply
    67,068,470.80x = 100,602,706.20 × 36,457,469.20
  4. Step 4: Simplify right side
    67,068,470.80x = 3,667,720,062,723,149.50
  5. Step 5: Solve for x
    x = 3,667,720,062,723,149.50/67,068,470.80
  6. Step 6: Final answer
    x = 54,686,203.80

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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.