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Finding the Fourth Proportional to 112,874, 155,766.14 and 62,573

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Solution

The fourth proportional to 112,874, 155,766.14 and 62,573 is: 86,350.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,874 : 155,766.14 = 62,573 : x
  2. Step 2: Convert to fraction form
    112,874/155,766.14 = 62,573/x
  3. Step 3: Cross multiply
    112,874x = 155,766.14 × 62,573
  4. Step 4: Simplify right side
    112,874x = 9,746,754,678.22
  5. Step 5: Solve for x
    x = 9,746,754,678.22/112,874
  6. Step 6: Final answer
    x = 86,350.75

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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.