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Finding the Fourth Proportional to 423,881.10, 635,820.02 and 108,337.50

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Solution

The fourth proportional to 423,881.10, 635,820.02 and 108,337.50 is: 162,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,881.10 : 635,820.02 = 108,337.50 : x
  2. Step 2: Convert to fraction form
    423,881.10/635,820.02 = 108,337.50/x
  3. Step 3: Cross multiply
    423,881.10x = 635,820.02 × 108,337.50
  4. Step 4: Simplify right side
    423,881.10x = 68,883,151,416.75
  5. Step 5: Solve for x
    x = 68,883,151,416.75/423,881.10
  6. Step 6: Final answer
    x = 162,505.83

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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.