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Finding the Fourth Proportional to 80,649.53, 111,294.91 and 44,838.77

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Solution

The fourth proportional to 80,649.53, 111,294.91 and 44,838.77 is: 61,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,649.53 : 111,294.91 = 44,838.77 : x
  2. Step 2: Convert to fraction form
    80,649.53/111,294.91 = 44,838.77/x
  3. Step 3: Cross multiply
    80,649.53x = 111,294.91 × 44,838.77
  4. Step 4: Simplify right side
    80,649.53x = 4,990,326,871.66
  5. Step 5: Solve for x
    x = 4,990,326,871.66/80,649.53
  6. Step 6: Final answer
    x = 61,876.70

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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.