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Finding the Fourth Proportional to 291,761.01, 437,641.52 and 92,221.54

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Solution

The fourth proportional to 291,761.01, 437,641.52 and 92,221.54 is: 138,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,761.01 : 437,641.52 = 92,221.54 : x
  2. Step 2: Convert to fraction form
    291,761.01/437,641.52 = 92,221.54/x
  3. Step 3: Cross multiply
    291,761.01x = 437,641.52 × 92,221.54
  4. Step 4: Simplify right side
    291,761.01x = 40,359,975,719.95
  5. Step 5: Solve for x
    x = 40,359,975,719.95/291,761.01
  6. Step 6: Final answer
    x = 138,332.31

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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.