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Finding the Fourth Proportional to 87,249.84, 120,411 and 49,526.52

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Solution

The fourth proportional to 87,249.84, 120,411 and 49,526.52 is: 68,350.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,249.84 : 120,411 = 49,526.52 : x
  2. Step 2: Convert to fraction form
    87,249.84/120,411 = 49,526.52/x
  3. Step 3: Cross multiply
    87,249.84x = 120,411 × 49,526.52
  4. Step 4: Simplify right side
    87,249.84x = 5,963,537,799.72
  5. Step 5: Solve for x
    x = 5,963,537,799.72/87,249.84
  6. Step 6: Final answer
    x = 68,350.13

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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.