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Finding the Fourth Proportional to 178,472.13, 267,622.07 and 103,611.12

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Solution

The fourth proportional to 178,472.13, 267,622.07 and 103,611.12 is: 155,366.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,472.13 : 267,622.07 = 103,611.12 : x
  2. Step 2: Convert to fraction form
    178,472.13/267,622.07 = 103,611.12/x
  3. Step 3: Cross multiply
    178,472.13x = 267,622.07 × 103,611.12
  4. Step 4: Simplify right side
    178,472.13x = 27,728,621,762.00
  5. Step 5: Solve for x
    x = 27,728,621,762.00/178,472.13
  6. Step 6: Final answer
    x = 155,366.68

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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.