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Finding the Fourth Proportional to 60,614.90, 90,513.39 and 49,543.86

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Solution

The fourth proportional to 60,614.90, 90,513.39 and 49,543.86 is: 73,981.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,614.90 : 90,513.39 = 49,543.86 : x
  2. Step 2: Convert to fraction form
    60,614.90/90,513.39 = 49,543.86/x
  3. Step 3: Cross multiply
    60,614.90x = 90,513.39 × 49,543.86
  4. Step 4: Simplify right side
    60,614.90x = 4,484,382,474.57
  5. Step 5: Solve for x
    x = 4,484,382,474.57/60,614.90
  6. Step 6: Final answer
    x = 73,981.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.