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Finding the Fourth Proportional to 67,856.38, 101,680.76 and 36,270.93

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Solution

The fourth proportional to 67,856.38, 101,680.76 and 36,270.93 is: 54,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,856.38 : 101,680.76 = 36,270.93 : x
  2. Step 2: Convert to fraction form
    67,856.38/101,680.76 = 36,270.93/x
  3. Step 3: Cross multiply
    67,856.38x = 101,680.76 × 36,270.93
  4. Step 4: Simplify right side
    67,856.38x = 3,688,055,728.31
  5. Step 5: Solve for x
    x = 3,688,055,728.31/67,856.38
  6. Step 6: Final answer
    x = 54,350.91

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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.