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Finding the Fourth Proportional to 316,310.80, 474,223.20 and 158,652.40

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Solution

The fourth proportional to 316,310.80, 474,223.20 and 158,652.40 is: 237,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,310.80 : 474,223.20 = 158,652.40 : x
  2. Step 2: Convert to fraction form
    316,310.80/474,223.20 = 158,652.40/x
  3. Step 3: Cross multiply
    316,310.80x = 474,223.20 × 158,652.40
  4. Step 4: Simplify right side
    316,310.80x = 75,236,648,815.68
  5. Step 5: Solve for x
    x = 75,236,648,815.68/316,310.80
  6. Step 6: Final answer
    x = 237,856.72

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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.