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Finding the Fourth Proportional to 99,559.88, 148,988.82 and 62,137.48

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Solution

The fourth proportional to 99,559.88, 148,988.82 and 62,137.48 is: 92,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,559.88 : 148,988.82 = 62,137.48 : x
  2. Step 2: Convert to fraction form
    99,559.88/148,988.82 = 62,137.48/x
  3. Step 3: Cross multiply
    99,559.88x = 148,988.82 × 62,137.48
  4. Step 4: Simplify right side
    99,559.88x = 9,257,789,822.97
  5. Step 5: Solve for x
    x = 9,257,789,822.97/99,559.88
  6. Step 6: Final answer
    x = 92,987.15

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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.