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Finding the Fourth Proportional to 103,249.17, 142,471.17 and 60,799.50

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Solution

The fourth proportional to 103,249.17, 142,471.17 and 60,799.50 is: 83,895.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,249.17 : 142,471.17 = 60,799.50 : x
  2. Step 2: Convert to fraction form
    103,249.17/142,471.17 = 60,799.50/x
  3. Step 3: Cross multiply
    103,249.17x = 142,471.17 × 60,799.50
  4. Step 4: Simplify right side
    103,249.17x = 8,662,175,900.42
  5. Step 5: Solve for x
    x = 8,662,175,900.42/103,249.17
  6. Step 6: Final answer
    x = 83,895.84

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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.