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Finding the Fourth Proportional to 90,248.56, 124,537.08 and 49,959.52

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Solution

The fourth proportional to 90,248.56, 124,537.08 and 49,959.52 is: 68,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,248.56 : 124,537.08 = 49,959.52 : x
  2. Step 2: Convert to fraction form
    90,248.56/124,537.08 = 49,959.52/x
  3. Step 3: Cross multiply
    90,248.56x = 124,537.08 × 49,959.52
  4. Step 4: Simplify right side
    90,248.56x = 6,221,812,739.00
  5. Step 5: Solve for x
    x = 6,221,812,739.00/90,248.56
  6. Step 6: Final answer
    x = 68,940.85

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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.