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Finding the Fourth Proportional to 83,474.88, 115,195.68 and 45,749.76

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Solution

The fourth proportional to 83,474.88, 115,195.68 and 45,749.76 is: 63,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,474.88 : 115,195.68 = 45,749.76 : x
  2. Step 2: Convert to fraction form
    83,474.88/115,195.68 = 45,749.76/x
  3. Step 3: Cross multiply
    83,474.88x = 115,195.68 × 45,749.76
  4. Step 4: Simplify right side
    83,474.88x = 5,270,174,713.04
  5. Step 5: Solve for x
    x = 5,270,174,713.04/83,474.88
  6. Step 6: Final answer
    x = 63,134.86

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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.