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Finding the Fourth Proportional to 74,602,783.80, 111,904,175.70 and 44,295,046.20

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Solution

The fourth proportional to 74,602,783.80, 111,904,175.70 and 44,295,046.20 is: 66,442,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,602,783.80 : 111,904,175.70 = 44,295,046.20 : x
  2. Step 2: Convert to fraction form
    74,602,783.80/111,904,175.70 = 44,295,046.20/x
  3. Step 3: Cross multiply
    74,602,783.80x = 111,904,175.70 × 44,295,046.20
  4. Step 4: Simplify right side
    74,602,783.80x = 4,956,800,632,604,418
  5. Step 5: Solve for x
    x = 4,956,800,632,604,418/74,602,783.80
  6. Step 6: Final answer
    x = 66,442,569.30

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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.