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Finding the Fourth Proportional to 99,846.25, 137,788.08 and 54,524.32

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Solution

The fourth proportional to 99,846.25, 137,788.08 and 54,524.32 is: 75,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,846.25 : 137,788.08 = 54,524.32 : x
  2. Step 2: Convert to fraction form
    99,846.25/137,788.08 = 54,524.32/x
  3. Step 3: Cross multiply
    99,846.25x = 137,788.08 × 54,524.32
  4. Step 4: Simplify right side
    99,846.25x = 7,512,801,366.11
  5. Step 5: Solve for x
    x = 7,512,801,366.11/99,846.25
  6. Step 6: Final answer
    x = 75,243.70

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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.