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Finding the Fourth Proportional to 124,715.40, 187,097.40 and 49,822.80

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Solution

The fourth proportional to 124,715.40, 187,097.40 and 49,822.80 is: 74,743.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,715.40 : 187,097.40 = 49,822.80 : x
  2. Step 2: Convert to fraction form
    124,715.40/187,097.40 = 49,822.80/x
  3. Step 3: Cross multiply
    124,715.40x = 187,097.40 × 49,822.80
  4. Step 4: Simplify right side
    124,715.40x = 9,321,716,340.72
  5. Step 5: Solve for x
    x = 9,321,716,340.72/124,715.40
  6. Step 6: Final answer
    x = 74,743.91

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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.