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Finding the Fourth Proportional to 124,181.76, 186,136.56 and 57,601.92

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Solution

The fourth proportional to 124,181.76, 186,136.56 and 57,601.92 is: 86,339.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,181.76 : 186,136.56 = 57,601.92 : x
  2. Step 2: Convert to fraction form
    124,181.76/186,136.56 = 57,601.92/x
  3. Step 3: Cross multiply
    124,181.76x = 186,136.56 × 57,601.92
  4. Step 4: Simplify right side
    124,181.76x = 10,721,823,238.20
  5. Step 5: Solve for x
    x = 10,721,823,238.20/124,181.76
  6. Step 6: Final answer
    x = 86,339.76

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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.