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Finding the Fourth Proportional to 292,171.92, 438,259.14 and 92,493.27

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Solution

The fourth proportional to 292,171.92, 438,259.14 and 92,493.27 is: 138,740.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,171.92 : 438,259.14 = 92,493.27 : x
  2. Step 2: Convert to fraction form
    292,171.92/438,259.14 = 92,493.27/x
  3. Step 3: Cross multiply
    292,171.92x = 438,259.14 × 92,493.27
  4. Step 4: Simplify right side
    292,171.92x = 40,536,020,965.99
  5. Step 5: Solve for x
    x = 40,536,020,965.99/292,171.92
  6. Step 6: Final answer
    x = 138,740.30

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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.