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Finding the Fourth Proportional to 524,854.20, 787,475.70 and 169,879.80

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Solution

The fourth proportional to 524,854.20, 787,475.70 and 169,879.80 is: 254,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,854.20 : 787,475.70 = 169,879.80 : x
  2. Step 2: Convert to fraction form
    524,854.20/787,475.70 = 169,879.80/x
  3. Step 3: Cross multiply
    524,854.20x = 787,475.70 × 169,879.80
  4. Step 4: Simplify right side
    524,854.20x = 133,776,214,420.86
  5. Step 5: Solve for x
    x = 133,776,214,420.86/524,854.20
  6. Step 6: Final answer
    x = 254,882.62

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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.