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Finding the Fourth Proportional to 98,586.75, 147,892.38 and 38,607.48

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Solution

The fourth proportional to 98,586.75, 147,892.38 and 38,607.48 is: 57,916.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,586.75 : 147,892.38 = 38,607.48 : x
  2. Step 2: Convert to fraction form
    98,586.75/147,892.38 = 38,607.48/x
  3. Step 3: Cross multiply
    98,586.75x = 147,892.38 × 38,607.48
  4. Step 4: Simplify right side
    98,586.75x = 5,709,752,103.00
  5. Step 5: Solve for x
    x = 5,709,752,103.00/98,586.75
  6. Step 6: Final answer
    x = 57,916.02

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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.