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Finding the Fourth Proportional to 92,618.31, 138,927.45 and 22,497.15

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Solution

The fourth proportional to 92,618.31, 138,927.45 and 22,497.15 is: 33,745.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,618.31 : 138,927.45 = 22,497.15 : x
  2. Step 2: Convert to fraction form
    92,618.31/138,927.45 = 22,497.15/x
  3. Step 3: Cross multiply
    92,618.31x = 138,927.45 × 22,497.15
  4. Step 4: Simplify right side
    92,618.31x = 3,125,471,681.77
  5. Step 5: Solve for x
    x = 3,125,471,681.77/92,618.31
  6. Step 6: Final answer
    x = 33,745.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.