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Finding the Fourth Proportional to 323,115.60, 484,743.30 and 98,470.10

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Solution

The fourth proportional to 323,115.60, 484,743.30 and 98,470.10 is: 147,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,115.60 : 484,743.30 = 98,470.10 : x
  2. Step 2: Convert to fraction form
    323,115.60/484,743.30 = 98,470.10/x
  3. Step 3: Cross multiply
    323,115.60x = 484,743.30 × 98,470.10
  4. Step 4: Simplify right side
    323,115.60x = 47,732,721,225.33
  5. Step 5: Solve for x
    x = 47,732,721,225.33/323,115.60
  6. Step 6: Final answer
    x = 147,726.45

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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.