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Finding the Fourth Proportional to 91,181.89, 125,888.79 and 62,549.52

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Solution

The fourth proportional to 91,181.89, 125,888.79 and 62,549.52 is: 86,357.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,181.89 : 125,888.79 = 62,549.52 : x
  2. Step 2: Convert to fraction form
    91,181.89/125,888.79 = 62,549.52/x
  3. Step 3: Cross multiply
    91,181.89x = 125,888.79 × 62,549.52
  4. Step 4: Simplify right side
    91,181.89x = 7,874,283,387.88
  5. Step 5: Solve for x
    x = 7,874,283,387.88/91,181.89
  6. Step 6: Final answer
    x = 86,357.98

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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.