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Finding the Fourth Proportional to 546,409.11, 819,539.85 and 147,073.85

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Solution

The fourth proportional to 546,409.11, 819,539.85 and 147,073.85 is: 220,590.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,409.11 : 819,539.85 = 147,073.85 : x
  2. Step 2: Convert to fraction form
    546,409.11/819,539.85 = 147,073.85/x
  3. Step 3: Cross multiply
    546,409.11x = 819,539.85 × 147,073.85
  4. Step 4: Simplify right side
    546,409.11x = 120,532,876,870.22
  5. Step 5: Solve for x
    x = 120,532,876,870.22/546,409.11
  6. Step 6: Final answer
    x = 220,590.90

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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.