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Finding the Fourth Proportional to 125,270.93, 187,594.86 and 87,654.76

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Solution

The fourth proportional to 125,270.93, 187,594.86 and 87,654.76 is: 131,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,270.93 : 187,594.86 = 87,654.76 : x
  2. Step 2: Convert to fraction form
    125,270.93/187,594.86 = 87,654.76/x
  3. Step 3: Cross multiply
    125,270.93x = 187,594.86 × 87,654.76
  4. Step 4: Simplify right side
    125,270.93x = 16,443,582,043.72
  5. Step 5: Solve for x
    x = 16,443,582,043.72/125,270.93
  6. Step 6: Final answer
    x = 131,264.15

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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.