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Finding the Fourth Proportional to 185,697.87, 278,513.86 and 84,472.35

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Solution

The fourth proportional to 185,697.87, 278,513.86 and 84,472.35 is: 126,693.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,697.87 : 278,513.86 = 84,472.35 : x
  2. Step 2: Convert to fraction form
    185,697.87/278,513.86 = 84,472.35/x
  3. Step 3: Cross multiply
    185,697.87x = 278,513.86 × 84,472.35
  4. Step 4: Simplify right side
    185,697.87x = 23,526,720,261.77
  5. Step 5: Solve for x
    x = 23,526,720,261.77/185,697.87
  6. Step 6: Final answer
    x = 126,693.54

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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.