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Finding the Fourth Proportional to 231,528.48, 347,873.90 and 147,325.20

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Solution

The fourth proportional to 231,528.48, 347,873.90 and 147,325.20 is: 221,357.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,528.48 : 347,873.90 = 147,325.20 : x
  2. Step 2: Convert to fraction form
    231,528.48/347,873.90 = 147,325.20/x
  3. Step 3: Cross multiply
    231,528.48x = 347,873.90 × 147,325.20
  4. Step 4: Simplify right side
    231,528.48x = 51,250,591,155.65
  5. Step 5: Solve for x
    x = 51,250,591,155.65/231,528.48
  6. Step 6: Final answer
    x = 221,357.61

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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.