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Finding the Fourth Proportional to 144,505.80, 216,767.25 and 55,759.77

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Solution

The fourth proportional to 144,505.80, 216,767.25 and 55,759.77 is: 83,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,505.80 : 216,767.25 = 55,759.77 : x
  2. Step 2: Convert to fraction form
    144,505.80/216,767.25 = 55,759.77/x
  3. Step 3: Cross multiply
    144,505.80x = 216,767.25 × 55,759.77
  4. Step 4: Simplify right side
    144,505.80x = 12,086,892,003.53
  5. Step 5: Solve for x
    x = 12,086,892,003.53/144,505.80
  6. Step 6: Final answer
    x = 83,642.95

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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.