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Finding the Fourth Proportional to 99,613.98, 149,051.88 and 79,832.52

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Solution

The fourth proportional to 99,613.98, 149,051.88 and 79,832.52 is: 119,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,613.98 : 149,051.88 = 79,832.52 : x
  2. Step 2: Convert to fraction form
    99,613.98/149,051.88 = 79,832.52/x
  3. Step 3: Cross multiply
    99,613.98x = 149,051.88 × 79,832.52
  4. Step 4: Simplify right side
    99,613.98x = 11,899,187,191.14
  5. Step 5: Solve for x
    x = 11,899,187,191.14/99,613.98
  6. Step 6: Final answer
    x = 119,452.98

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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.