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Finding the Fourth Proportional to 131,755.55, 181,824.55 and 75,166.92

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Solution

The fourth proportional to 131,755.55, 181,824.55 and 75,166.92 is: 103,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,755.55 : 181,824.55 = 75,166.92 : x
  2. Step 2: Convert to fraction form
    131,755.55/181,824.55 = 75,166.92/x
  3. Step 3: Cross multiply
    131,755.55x = 181,824.55 × 75,166.92
  4. Step 4: Simplify right side
    131,755.55x = 13,667,191,215.97
  5. Step 5: Solve for x
    x = 13,667,191,215.97/131,755.55
  6. Step 6: Final answer
    x = 103,731.43

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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.