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Finding the Fourth Proportional to 164,482,804.80, 246,724,207.20 and 138,654,772.20

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Solution

The fourth proportional to 164,482,804.80, 246,724,207.20 and 138,654,772.20 is: 207,982,158.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,482,804.80 : 246,724,207.20 = 138,654,772.20 : x
  2. Step 2: Convert to fraction form
    164,482,804.80/246,724,207.20 = 138,654,772.20/x
  3. Step 3: Cross multiply
    164,482,804.80x = 246,724,207.20 × 138,654,772.20
  4. Step 4: Simplify right side
    164,482,804.80x = 34,209,488,745,541,596
  5. Step 5: Solve for x
    x = 34,209,488,745,541,596/164,482,804.80
  6. Step 6: Final answer
    x = 207,982,158.30

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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.