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Finding the Fourth Proportional to 112,725.88, 155,566.60 and 62,424.88

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Solution

The fourth proportional to 112,725.88, 155,566.60 and 62,424.88 is: 86,149.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,725.88 : 155,566.60 = 62,424.88 : x
  2. Step 2: Convert to fraction form
    112,725.88/155,566.60 = 62,424.88/x
  3. Step 3: Cross multiply
    112,725.88x = 155,566.60 × 62,424.88
  4. Step 4: Simplify right side
    112,725.88x = 9,711,225,559.18
  5. Step 5: Solve for x
    x = 9,711,225,559.18/112,725.88
  6. Step 6: Final answer
    x = 86,149.04

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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.