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Finding the Fourth Proportional to 317,720.20, 475,854.46 and 151,624.84

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Solution

The fourth proportional to 317,720.20, 475,854.46 and 151,624.84 is: 227,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,720.20 : 475,854.46 = 151,624.84 : x
  2. Step 2: Convert to fraction form
    317,720.20/475,854.46 = 151,624.84/x
  3. Step 3: Cross multiply
    317,720.20x = 475,854.46 × 151,624.84
  4. Step 4: Simplify right side
    317,720.20x = 72,151,356,360.79
  5. Step 5: Solve for x
    x = 72,151,356,360.79/317,720.20
  6. Step 6: Final answer
    x = 227,090.87

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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.