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Finding the Fourth Proportional to 124,446.60, 186,648.30 and 45,520.20

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Solution

The fourth proportional to 124,446.60, 186,648.30 and 45,520.20 is: 68,272.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,446.60 : 186,648.30 = 45,520.20 : x
  2. Step 2: Convert to fraction form
    124,446.60/186,648.30 = 45,520.20/x
  3. Step 3: Cross multiply
    124,446.60x = 186,648.30 × 45,520.20
  4. Step 4: Simplify right side
    124,446.60x = 8,496,267,945.66
  5. Step 5: Solve for x
    x = 8,496,267,945.66/124,446.60
  6. Step 6: Final answer
    x = 68,272.40

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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.