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Finding the Fourth Proportional to 234,339.60, 323,394.57 and 143,745.52

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Solution

The fourth proportional to 234,339.60, 323,394.57 and 143,745.52 is: 198,372.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,339.60 : 323,394.57 = 143,745.52 : x
  2. Step 2: Convert to fraction form
    234,339.60/323,394.57 = 143,745.52/x
  3. Step 3: Cross multiply
    234,339.60x = 323,394.57 × 143,745.52
  4. Step 4: Simplify right side
    234,339.60x = 46,486,520,023.42
  5. Step 5: Solve for x
    x = 46,486,520,023.42/234,339.60
  6. Step 6: Final answer
    x = 198,372.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.