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Finding the Fourth Proportional to 99,191.70, 148,802.13 and 32,619.42

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Solution

The fourth proportional to 99,191.70, 148,802.13 and 32,619.42 is: 48,933.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,191.70 : 148,802.13 = 32,619.42 : x
  2. Step 2: Convert to fraction form
    99,191.70/148,802.13 = 32,619.42/x
  3. Step 3: Cross multiply
    99,191.70x = 148,802.13 × 32,619.42
  4. Step 4: Simplify right side
    99,191.70x = 4,853,839,175.36
  5. Step 5: Solve for x
    x = 4,853,839,175.36/99,191.70
  6. Step 6: Final answer
    x = 48,933.92

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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.