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Finding the Fourth Proportional to 99,524.44, 137,345.34 and 54,812.44

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Solution

The fourth proportional to 99,524.44, 137,345.34 and 54,812.44 is: 75,642.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,524.44 : 137,345.34 = 54,812.44 : x
  2. Step 2: Convert to fraction form
    99,524.44/137,345.34 = 54,812.44/x
  3. Step 3: Cross multiply
    99,524.44x = 137,345.34 × 54,812.44
  4. Step 4: Simplify right side
    99,524.44x = 7,528,233,208.03
  5. Step 5: Solve for x
    x = 7,528,233,208.03/99,524.44
  6. Step 6: Final answer
    x = 75,642.06

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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.