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Finding the Fourth Proportional to 124,798.93, 187,007.90 and 74,098.11

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Solution

The fourth proportional to 124,798.93, 187,007.90 and 74,098.11 is: 111,034.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,798.93 : 187,007.90 = 74,098.11 : x
  2. Step 2: Convert to fraction form
    124,798.93/187,007.90 = 74,098.11/x
  3. Step 3: Cross multiply
    124,798.93x = 187,007.90 × 74,098.11
  4. Step 4: Simplify right side
    124,798.93x = 13,856,932,831.59
  5. Step 5: Solve for x
    x = 13,856,932,831.59/124,798.93
  6. Step 6: Final answer
    x = 111,034.07

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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.