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Finding the Fourth Proportional to 423,707.35, 635,560.80 and 108,164.14

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Solution

The fourth proportional to 423,707.35, 635,560.80 and 108,164.14 is: 162,246.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,707.35 : 635,560.80 = 108,164.14 : x
  2. Step 2: Convert to fraction form
    423,707.35/635,560.80 = 108,164.14/x
  3. Step 3: Cross multiply
    423,707.35x = 635,560.80 × 108,164.14
  4. Step 4: Simplify right side
    423,707.35x = 68,744,887,349.71
  5. Step 5: Solve for x
    x = 68,744,887,349.71/423,707.35
  6. Step 6: Final answer
    x = 162,246.15

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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.