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Finding the Fourth Proportional to 232,581.76, 321,004.72 and 137,082.88

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Solution

The fourth proportional to 232,581.76, 321,004.72 and 137,082.88 is: 189,199.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,581.76 : 321,004.72 = 137,082.88 : x
  2. Step 2: Convert to fraction form
    232,581.76/321,004.72 = 137,082.88/x
  3. Step 3: Cross multiply
    232,581.76x = 321,004.72 × 137,082.88
  4. Step 4: Simplify right side
    232,581.76x = 44,004,251,511.19
  5. Step 5: Solve for x
    x = 44,004,251,511.19/232,581.76
  6. Step 6: Final answer
    x = 189,199.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.