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Finding the Fourth Proportional to 66,906,004.80, 100,359,007.20 and 41,396,836.80

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Solution

The fourth proportional to 66,906,004.80, 100,359,007.20 and 41,396,836.80 is: 62,095,255.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906,004.80 : 100,359,007.20 = 41,396,836.80 : x
  2. Step 2: Convert to fraction form
    66,906,004.80/100,359,007.20 = 41,396,836.80/x
  3. Step 3: Cross multiply
    66,906,004.80x = 100,359,007.20 × 41,396,836.80
  4. Step 4: Simplify right side
    66,906,004.80x = 4,154,545,442,468,425
  5. Step 5: Solve for x
    x = 4,154,545,442,468,425/66,906,004.80
  6. Step 6: Final answer
    x = 62,095,255.20

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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.