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Finding the Fourth Proportional to 605,877.45, 908,813.40 and 156,560.13

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Solution

The fourth proportional to 605,877.45, 908,813.40 and 156,560.13 is: 234,839.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,877.45 : 908,813.40 = 156,560.13 : x
  2. Step 2: Convert to fraction form
    605,877.45/908,813.40 = 156,560.13/x
  3. Step 3: Cross multiply
    605,877.45x = 908,813.40 × 156,560.13
  4. Step 4: Simplify right side
    605,877.45x = 142,283,944,049.74
  5. Step 5: Solve for x
    x = 142,283,944,049.74/605,877.45
  6. Step 6: Final answer
    x = 234,839.48

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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.