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Finding the Fourth Proportional to 353,729.32, 530,519.60 and 113,864.68

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Solution

The fourth proportional to 353,729.32, 530,519.60 and 113,864.68 is: 170,773.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,729.32 : 530,519.60 = 113,864.68 : x
  2. Step 2: Convert to fraction form
    353,729.32/530,519.60 = 113,864.68/x
  3. Step 3: Cross multiply
    353,729.32x = 530,519.60 × 113,864.68
  4. Step 4: Simplify right side
    353,729.32x = 60,407,442,592.11
  5. Step 5: Solve for x
    x = 60,407,442,592.11/353,729.32
  6. Step 6: Final answer
    x = 170,773.07

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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.