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Finding the Fourth Proportional to 104,830.53, 144,661.17 and 57,083.73

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Solution

The fourth proportional to 104,830.53, 144,661.17 and 57,083.73 is: 78,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,830.53 : 144,661.17 = 57,083.73 : x
  2. Step 2: Convert to fraction form
    104,830.53/144,661.17 = 57,083.73/x
  3. Step 3: Cross multiply
    104,830.53x = 144,661.17 × 57,083.73
  4. Step 4: Simplify right side
    104,830.53x = 8,257,799,169.76
  5. Step 5: Solve for x
    x = 8,257,799,169.76/104,830.53
  6. Step 6: Final answer
    x = 78,772.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.