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Finding the Fourth Proportional to 124,972.86, 187,223.84 and 61,718.94

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Solution

The fourth proportional to 124,972.86, 187,223.84 and 61,718.94 is: 92,462.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,972.86 : 187,223.84 = 61,718.94 : x
  2. Step 2: Convert to fraction form
    124,972.86/187,223.84 = 61,718.94/x
  3. Step 3: Cross multiply
    124,972.86x = 187,223.84 × 61,718.94
  4. Step 4: Simplify right side
    124,972.86x = 11,555,256,947.53
  5. Step 5: Solve for x
    x = 11,555,256,947.53/124,972.86
  6. Step 6: Final answer
    x = 92,462.13

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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.