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Finding the Fourth Proportional to 99,523.44, 137,343.96 and 54,811.44

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Solution

The fourth proportional to 99,523.44, 137,343.96 and 54,811.44 is: 75,640.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,523.44 : 137,343.96 = 54,811.44 : x
  2. Step 2: Convert to fraction form
    99,523.44/137,343.96 = 54,811.44/x
  3. Step 3: Cross multiply
    99,523.44x = 137,343.96 × 54,811.44
  4. Step 4: Simplify right side
    99,523.44x = 7,528,020,222.90
  5. Step 5: Solve for x
    x = 7,528,020,222.90/99,523.44
  6. Step 6: Final answer
    x = 75,640.68

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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.