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Finding the Fourth Proportional to 80,963.49, 111,726.87 and 44,666.39

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Solution

The fourth proportional to 80,963.49, 111,726.87 and 44,666.39 is: 61,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,963.49 : 111,726.87 = 44,666.39 : x
  2. Step 2: Convert to fraction form
    80,963.49/111,726.87 = 44,666.39/x
  3. Step 3: Cross multiply
    80,963.49x = 111,726.87 × 44,666.39
  4. Step 4: Simplify right side
    80,963.49x = 4,990,435,390.26
  5. Step 5: Solve for x
    x = 4,990,435,390.26/80,963.49
  6. Step 6: Final answer
    x = 61,638.10

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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.