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Finding the Fourth Proportional to 423,587.12, 635,505.24 and 170,737.45

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Solution

The fourth proportional to 423,587.12, 635,505.24 and 170,737.45 is: 256,156.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,587.12 : 635,505.24 = 170,737.45 : x
  2. Step 2: Convert to fraction form
    423,587.12/635,505.24 = 170,737.45/x
  3. Step 3: Cross multiply
    423,587.12x = 635,505.24 × 170,737.45
  4. Step 4: Simplify right side
    423,587.12x = 108,504,545,349.89
  5. Step 5: Solve for x
    x = 108,504,545,349.89/423,587.12
  6. Step 6: Final answer
    x = 256,156.39

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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.