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Finding the Fourth Proportional to 239,596.80, 330,639.48 and 132,177.12

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Solution

The fourth proportional to 239,596.80, 330,639.48 and 132,177.12 is: 182,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,596.80 : 330,639.48 = 132,177.12 : x
  2. Step 2: Convert to fraction form
    239,596.80/330,639.48 = 132,177.12/x
  3. Step 3: Cross multiply
    239,596.80x = 330,639.48 × 132,177.12
  4. Step 4: Simplify right side
    239,596.80x = 43,702,974,224.70
  5. Step 5: Solve for x
    x = 43,702,974,224.70/239,596.80
  6. Step 6: Final answer
    x = 182,402.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.