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Finding the Fourth Proportional to 423,667.22, 635,500.32 and 108,124.16

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Solution

The fourth proportional to 423,667.22, 635,500.32 and 108,124.16 is: 162,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,667.22 : 635,500.32 = 108,124.16 : x
  2. Step 2: Convert to fraction form
    423,667.22/635,500.32 = 108,124.16/x
  3. Step 3: Cross multiply
    423,667.22x = 635,500.32 × 108,124.16
  4. Step 4: Simplify right side
    423,667.22x = 68,712,938,279.73
  5. Step 5: Solve for x
    x = 68,712,938,279.73/423,667.22
  6. Step 6: Final answer
    x = 162,186.11

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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.