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Finding the Fourth Proportional to 83,679.16, 115,474.14 and 45,951.16

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Solution

The fourth proportional to 83,679.16, 115,474.14 and 45,951.16 is: 63,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,679.16 : 115,474.14 = 45,951.16 : x
  2. Step 2: Convert to fraction form
    83,679.16/115,474.14 = 45,951.16/x
  3. Step 3: Cross multiply
    83,679.16x = 115,474.14 × 45,951.16
  4. Step 4: Simplify right side
    83,679.16x = 5,306,170,683.00
  5. Step 5: Solve for x
    x = 5,306,170,683.00/83,679.16
  6. Step 6: Final answer
    x = 63,410.90

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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.