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Finding the Fourth Proportional to 132,438.08, 198,581.16 and 43,667.12

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Solution

The fourth proportional to 132,438.08, 198,581.16 and 43,667.12 is: 65,475.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,438.08 : 198,581.16 = 43,667.12 : x
  2. Step 2: Convert to fraction form
    132,438.08/198,581.16 = 43,667.12/x
  3. Step 3: Cross multiply
    132,438.08x = 198,581.16 × 43,667.12
  4. Step 4: Simplify right side
    132,438.08x = 8,671,467,343.46
  5. Step 5: Solve for x
    x = 8,671,467,343.46/132,438.08
  6. Step 6: Final answer
    x = 65,475.63

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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.