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Finding the Fourth Proportional to 176,531.60, 264,700.20 and 71,231.60

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Solution

The fourth proportional to 176,531.60, 264,700.20 and 71,231.60 is: 106,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,531.60 : 264,700.20 = 71,231.60 : x
  2. Step 2: Convert to fraction form
    176,531.60/264,700.20 = 71,231.60/x
  3. Step 3: Cross multiply
    176,531.60x = 264,700.20 × 71,231.60
  4. Step 4: Simplify right side
    176,531.60x = 18,855,018,766.32
  5. Step 5: Solve for x
    x = 18,855,018,766.32/176,531.60
  6. Step 6: Final answer
    x = 106,808.18

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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.