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Finding the Fourth Proportional to 139,452.17, 209,192.10 and 44,658.55

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Solution

The fourth proportional to 139,452.17, 209,192.10 and 44,658.55 is: 66,992.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,452.17 : 209,192.10 = 44,658.55 : x
  2. Step 2: Convert to fraction form
    139,452.17/209,192.10 = 44,658.55/x
  3. Step 3: Cross multiply
    139,452.17x = 209,192.10 × 44,658.55
  4. Step 4: Simplify right side
    139,452.17x = 9,342,214,588.20
  5. Step 5: Solve for x
    x = 9,342,214,588.20/139,452.17
  6. Step 6: Final answer
    x = 66,992.25

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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.