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Finding the Fourth Proportional to 89,927.61, 124,098.61 and 49,640.34

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Solution

The fourth proportional to 89,927.61, 124,098.61 and 49,640.34 is: 68,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,927.61 : 124,098.61 = 49,640.34 : x
  2. Step 2: Convert to fraction form
    89,927.61/124,098.61 = 49,640.34/x
  3. Step 3: Cross multiply
    89,927.61x = 124,098.61 × 49,640.34
  4. Step 4: Simplify right side
    89,927.61x = 6,160,297,193.93
  5. Step 5: Solve for x
    x = 6,160,297,193.93/89,927.61
  6. Step 6: Final answer
    x = 68,502.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.