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Finding the Fourth Proportional to 658,109.50, 987,164.39 and 237,385.33

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Solution

The fourth proportional to 658,109.50, 987,164.39 and 237,385.33 is: 356,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,109.50 : 987,164.39 = 237,385.33 : x
  2. Step 2: Convert to fraction form
    658,109.50/987,164.39 = 237,385.33/x
  3. Step 3: Cross multiply
    658,109.50x = 987,164.39 × 237,385.33
  4. Step 4: Simplify right side
    658,109.50x = 234,338,344,484.40
  5. Step 5: Solve for x
    x = 234,338,344,484.40/658,109.50
  6. Step 6: Final answer
    x = 356,078.05

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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.