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Finding the Fourth Proportional to 80,479.78, 111,056.88 and 44,669.80

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Solution

The fourth proportional to 80,479.78, 111,056.88 and 44,669.80 is: 61,641.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,479.78 : 111,056.88 = 44,669.80 : x
  2. Step 2: Convert to fraction form
    80,479.78/111,056.88 = 44,669.80/x
  3. Step 3: Cross multiply
    80,479.78x = 111,056.88 × 44,669.80
  4. Step 4: Simplify right side
    80,479.78x = 4,960,888,618.22
  5. Step 5: Solve for x
    x = 4,960,888,618.22/80,479.78
  6. Step 6: Final answer
    x = 61,641.43

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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.