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Finding the Fourth Proportional to 99,849.52, 149,768.52 and 60,396.08

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Solution

The fourth proportional to 99,849.52, 149,768.52 and 60,396.08 is: 90,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,849.52 : 149,768.52 = 60,396.08 : x
  2. Step 2: Convert to fraction form
    99,849.52/149,768.52 = 60,396.08/x
  3. Step 3: Cross multiply
    99,849.52x = 149,768.52 × 60,396.08
  4. Step 4: Simplify right side
    99,849.52x = 9,045,431,515.40
  5. Step 5: Solve for x
    x = 9,045,431,515.40/99,849.52
  6. Step 6: Final answer
    x = 90,590.64

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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.