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Finding the Fourth Proportional to 179,240.80, 268,861.20 and 137,250.40

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Solution

The fourth proportional to 179,240.80, 268,861.20 and 137,250.40 is: 205,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,240.80 : 268,861.20 = 137,250.40 : x
  2. Step 2: Convert to fraction form
    179,240.80/268,861.20 = 137,250.40/x
  3. Step 3: Cross multiply
    179,240.80x = 268,861.20 × 137,250.40
  4. Step 4: Simplify right side
    179,240.80x = 36,901,307,244.48
  5. Step 5: Solve for x
    x = 36,901,307,244.48/179,240.80
  6. Step 6: Final answer
    x = 205,875.60

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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.