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Finding the Fourth Proportional to 132,871.28, 199,202.28 and 66,277.12

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Solution

The fourth proportional to 132,871.28, 199,202.28 and 66,277.12 is: 99,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,871.28 : 199,202.28 = 66,277.12 : x
  2. Step 2: Convert to fraction form
    132,871.28/199,202.28 = 66,277.12/x
  3. Step 3: Cross multiply
    132,871.28x = 199,202.28 × 66,277.12
  4. Step 4: Simplify right side
    132,871.28x = 13,202,553,415.83
  5. Step 5: Solve for x
    x = 13,202,553,415.83/132,871.28
  6. Step 6: Final answer
    x = 99,363.48

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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.