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Finding the Fourth Proportional to 132,230.40, 198,374.76 and 43,480.32

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Solution

The fourth proportional to 132,230.40, 198,374.76 and 43,480.32 is: 65,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,230.40 : 198,374.76 = 43,480.32 : x
  2. Step 2: Convert to fraction form
    132,230.40/198,374.76 = 43,480.32/x
  3. Step 3: Cross multiply
    132,230.40x = 198,374.76 × 43,480.32
  4. Step 4: Simplify right side
    132,230.40x = 8,625,398,044.72
  5. Step 5: Solve for x
    x = 8,625,398,044.72/132,230.40
  6. Step 6: Final answer
    x = 65,230.07

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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.