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Finding the Fourth Proportional to 124,804.47, 187,131.90 and 57,251.91

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Solution

The fourth proportional to 124,804.47, 187,131.90 and 57,251.91 is: 85,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,804.47 : 187,131.90 = 57,251.91 : x
  2. Step 2: Convert to fraction form
    124,804.47/187,131.90 = 57,251.91/x
  3. Step 3: Cross multiply
    124,804.47x = 187,131.90 × 57,251.91
  4. Step 4: Simplify right side
    124,804.47x = 10,713,658,696.93
  5. Step 5: Solve for x
    x = 10,713,658,696.93/124,804.47
  6. Step 6: Final answer
    x = 85,843.55

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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.