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Finding the Fourth Proportional to 132,443.10, 198,664.65 and 43,710.30

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Solution

The fourth proportional to 132,443.10, 198,664.65 and 43,710.30 is: 65,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,443.10 : 198,664.65 = 43,710.30 : x
  2. Step 2: Convert to fraction form
    132,443.10/198,664.65 = 43,710.30/x
  3. Step 3: Cross multiply
    132,443.10x = 198,664.65 × 43,710.30
  4. Step 4: Simplify right side
    132,443.10x = 8,683,691,450.90
  5. Step 5: Solve for x
    x = 8,683,691,450.90/132,443.10
  6. Step 6: Final answer
    x = 65,565.45

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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.