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Finding the Fourth Proportional to 79,616.42, 119,424.62 and 20,452.14

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Solution

The fourth proportional to 79,616.42, 119,424.62 and 20,452.14 is: 30,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,616.42 : 119,424.62 = 20,452.14 : x
  2. Step 2: Convert to fraction form
    79,616.42/119,424.62 = 20,452.14/x
  3. Step 3: Cross multiply
    79,616.42x = 119,424.62 × 20,452.14
  4. Step 4: Simplify right side
    79,616.42x = 2,442,489,098.82
  5. Step 5: Solve for x
    x = 2,442,489,098.82/79,616.42
  6. Step 6: Final answer
    x = 30,678.21

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1.5x scale

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.