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Finding the Fourth Proportional to 84,616.74, 126,925.11 and 43,092.90

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Solution

The fourth proportional to 84,616.74, 126,925.11 and 43,092.90 is: 64,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,616.74 : 126,925.11 = 43,092.90 : x
  2. Step 2: Convert to fraction form
    84,616.74/126,925.11 = 43,092.90/x
  3. Step 3: Cross multiply
    84,616.74x = 126,925.11 × 43,092.90
  4. Step 4: Simplify right side
    84,616.74x = 5,469,571,072.72
  5. Step 5: Solve for x
    x = 5,469,571,072.72/84,616.74
  6. Step 6: Final answer
    x = 64,639.35

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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.