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Finding the Fourth Proportional to 71,253.68, 98,314.76 and 42,958.76

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Solution

The fourth proportional to 71,253.68, 98,314.76 and 42,958.76 is: 59,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,253.68 : 98,314.76 = 42,958.76 : x
  2. Step 2: Convert to fraction form
    71,253.68/98,314.76 = 42,958.76/x
  3. Step 3: Cross multiply
    71,253.68x = 98,314.76 × 42,958.76
  4. Step 4: Simplify right side
    71,253.68x = 4,223,479,795.12
  5. Step 5: Solve for x
    x = 4,223,479,795.12/71,253.68
  6. Step 6: Final answer
    x = 59,273.85

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1.5x scale

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.