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Finding the Fourth Proportional to 243,378.10, 365,067.15 and 234,046.90

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Solution

The fourth proportional to 243,378.10, 365,067.15 and 234,046.90 is: 351,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,378.10 : 365,067.15 = 234,046.90 : x
  2. Step 2: Convert to fraction form
    243,378.10/365,067.15 = 234,046.90/x
  3. Step 3: Cross multiply
    243,378.10x = 365,067.15 × 234,046.90
  4. Step 4: Simplify right side
    243,378.10x = 85,442,834,749.34
  5. Step 5: Solve for x
    x = 85,442,834,749.34/243,378.10
  6. Step 6: Final answer
    x = 351,070.35

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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.