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Finding the Fourth Proportional to 605,813.13, 908,648.94 and 156,498.76

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Solution

The fourth proportional to 605,813.13, 908,648.94 and 156,498.76 is: 234,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,813.13 : 908,648.94 = 156,498.76 : x
  2. Step 2: Convert to fraction form
    605,813.13/908,648.94 = 156,498.76/x
  3. Step 3: Cross multiply
    605,813.13x = 908,648.94 × 156,498.76
  4. Step 4: Simplify right side
    605,813.13x = 142,202,432,385.31
  5. Step 5: Solve for x
    x = 142,202,432,385.31/605,813.13
  6. Step 6: Final answer
    x = 234,729.86

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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.