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Finding the Fourth Proportional to 75,146.88, 103,614.66 and 59,990.97

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Solution

The fourth proportional to 75,146.88, 103,614.66 and 59,990.97 is: 82,717.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,146.88 : 103,614.66 = 59,990.97 : x
  2. Step 2: Convert to fraction form
    75,146.88/103,614.66 = 59,990.97/x
  3. Step 3: Cross multiply
    75,146.88x = 103,614.66 × 59,990.97
  4. Step 4: Simplify right side
    75,146.88x = 6,215,943,959.62
  5. Step 5: Solve for x
    x = 6,215,943,959.62/75,146.88
  6. Step 6: Final answer
    x = 82,717.26

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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.