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Finding the Fourth Proportional to 89,737.54, 123,838.64 and 49,452.74

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Solution

The fourth proportional to 89,737.54, 123,838.64 and 49,452.74 is: 68,245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,737.54 : 123,838.64 = 49,452.74 : x
  2. Step 2: Convert to fraction form
    89,737.54/123,838.64 = 49,452.74/x
  3. Step 3: Cross multiply
    89,737.54x = 123,838.64 × 49,452.74
  4. Step 4: Simplify right side
    89,737.54x = 6,124,160,128.21
  5. Step 5: Solve for x
    x = 6,124,160,128.21/89,737.54
  6. Step 6: Final answer
    x = 68,245.24

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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.