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Finding the Fourth Proportional to 132,327.40, 198,548.70 and 66,663.40

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Solution

The fourth proportional to 132,327.40, 198,548.70 and 66,663.40 is: 100,024.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,327.40 : 198,548.70 = 66,663.40 : x
  2. Step 2: Convert to fraction form
    132,327.40/198,548.70 = 66,663.40/x
  3. Step 3: Cross multiply
    132,327.40x = 198,548.70 × 66,663.40
  4. Step 4: Simplify right side
    132,327.40x = 13,235,931,407.58
  5. Step 5: Solve for x
    x = 13,235,931,407.58/132,327.40
  6. Step 6: Final answer
    x = 100,024.12

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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.