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Finding the Fourth Proportional to 72,962.92, 100,726.88 and 51,792.76

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Solution

The fourth proportional to 72,962.92, 100,726.88 and 51,792.76 is: 71,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,962.92 : 100,726.88 = 51,792.76 : x
  2. Step 2: Convert to fraction form
    72,962.92/100,726.88 = 51,792.76/x
  3. Step 3: Cross multiply
    72,962.92x = 100,726.88 × 51,792.76
  4. Step 4: Simplify right side
    72,962.92x = 5,216,923,121.39
  5. Step 5: Solve for x
    x = 5,216,923,121.39/72,962.92
  6. Step 6: Final answer
    x = 71,501.02

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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.