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Finding the Fourth Proportional to 124,752.29, 187,128.16 and 49,889.93

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Solution

The fourth proportional to 124,752.29, 187,128.16 and 49,889.93 is: 74,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,752.29 : 187,128.16 = 49,889.93 : x
  2. Step 2: Convert to fraction form
    124,752.29/187,128.16 = 49,889.93/x
  3. Step 3: Cross multiply
    124,752.29x = 187,128.16 × 49,889.93
  4. Step 4: Simplify right side
    124,752.29x = 9,335,809,743.06
  5. Step 5: Solve for x
    x = 9,335,809,743.06/124,752.29
  6. Step 6: Final answer
    x = 74,834.78

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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.