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Finding the Fourth Proportional to 112,750, 155,599.95 and 62,449

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Solution

The fourth proportional to 112,750, 155,599.95 and 62,449 is: 86,182.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,750 : 155,599.95 = 62,449 : x
  2. Step 2: Convert to fraction form
    112,750/155,599.95 = 62,449/x
  3. Step 3: Cross multiply
    112,750x = 155,599.95 × 62,449
  4. Step 4: Simplify right side
    112,750x = 9,717,061,277.55
  5. Step 5: Solve for x
    x = 9,717,061,277.55/112,750
  6. Step 6: Final answer
    x = 86,182.36

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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.