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Finding the Fourth Proportional to 124,797.66, 187,092.81 and 87,250.38

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Solution

The fourth proportional to 124,797.66, 187,092.81 and 87,250.38 is: 130,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,797.66 : 187,092.81 = 87,250.38 : x
  2. Step 2: Convert to fraction form
    124,797.66/187,092.81 = 87,250.38/x
  3. Step 3: Cross multiply
    124,797.66x = 187,092.81 × 87,250.38
  4. Step 4: Simplify right side
    124,797.66x = 16,323,918,767.77
  5. Step 5: Solve for x
    x = 16,323,918,767.77/124,797.66
  6. Step 6: Final answer
    x = 130,803.08

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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.