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Finding the Fourth Proportional to 83,603.88, 125,454.86 and 31,049.80

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Solution

The fourth proportional to 83,603.88, 125,454.86 and 31,049.80 is: 46,592.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,603.88 : 125,454.86 = 31,049.80 : x
  2. Step 2: Convert to fraction form
    83,603.88/125,454.86 = 31,049.80/x
  3. Step 3: Cross multiply
    83,603.88x = 125,454.86 × 31,049.80
  4. Step 4: Simplify right side
    83,603.88x = 3,895,348,312.03
  5. Step 5: Solve for x
    x = 3,895,348,312.03/83,603.88
  6. Step 6: Final answer
    x = 46,592.91

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1.5x scale

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.