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Finding the Fourth Proportional to 87,244.17, 120,471.80 and 84,422.94

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Solution

The fourth proportional to 87,244.17, 120,471.80 and 84,422.94 is: 116,576.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,244.17 : 120,471.80 = 84,422.94 : x
  2. Step 2: Convert to fraction form
    87,244.17/120,471.80 = 84,422.94/x
  3. Step 3: Cross multiply
    87,244.17x = 120,471.80 × 84,422.94
  4. Step 4: Simplify right side
    87,244.17x = 10,170,583,332.03
  5. Step 5: Solve for x
    x = 10,170,583,332.03/87,244.17
  6. Step 6: Final answer
    x = 116,576.08

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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.