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Finding the Fourth Proportional to 423,701.84, 635,552.55 and 108,158.64

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Solution

The fourth proportional to 423,701.84, 635,552.55 and 108,158.64 is: 162,237.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,701.84 : 635,552.55 = 108,158.64 : x
  2. Step 2: Convert to fraction form
    423,701.84/635,552.55 = 108,158.64/x
  3. Step 3: Cross multiply
    423,701.84x = 635,552.55 × 108,158.64
  4. Step 4: Simplify right side
    423,701.84x = 68,740,499,456.53
  5. Step 5: Solve for x
    x = 68,740,499,456.53/423,701.84
  6. Step 6: Final answer
    x = 162,237.91

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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.