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Finding the Fourth Proportional to 178,487.10, 267,644.52 and 103,626.09

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Solution

The fourth proportional to 178,487.10, 267,644.52 and 103,626.09 is: 155,389.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,487.10 : 267,644.52 = 103,626.09 : x
  2. Step 2: Convert to fraction form
    178,487.10/267,644.52 = 103,626.09/x
  3. Step 3: Cross multiply
    178,487.10x = 267,644.52 × 103,626.09
  4. Step 4: Simplify right side
    178,487.10x = 27,734,955,117.53
  5. Step 5: Solve for x
    x = 27,734,955,117.53/178,487.10
  6. Step 6: Final answer
    x = 155,389.13

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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.