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Finding the Fourth Proportional to 125,127.93, 187,721.34 and 36,378.84

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Solution

The fourth proportional to 125,127.93, 187,721.34 and 36,378.84 is: 54,576.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,127.93 : 187,721.34 = 36,378.84 : x
  2. Step 2: Convert to fraction form
    125,127.93/187,721.34 = 36,378.84/x
  3. Step 3: Cross multiply
    125,127.93x = 187,721.34 × 36,378.84
  4. Step 4: Simplify right side
    125,127.93x = 6,829,084,592.45
  5. Step 5: Solve for x
    x = 6,829,084,592.45/125,127.93
  6. Step 6: Final answer
    x = 54,576.82

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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.