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Finding the Fourth Proportional to 239,790.30, 330,908.76 and 132,360.30

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Solution

The fourth proportional to 239,790.30, 330,908.76 and 132,360.30 is: 182,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,790.30 : 330,908.76 = 132,360.30 : x
  2. Step 2: Convert to fraction form
    239,790.30/330,908.76 = 132,360.30/x
  3. Step 3: Cross multiply
    239,790.30x = 330,908.76 × 132,360.30
  4. Step 4: Simplify right side
    239,790.30x = 43,799,182,746.23
  5. Step 5: Solve for x
    x = 43,799,182,746.23/239,790.30
  6. Step 6: Final answer
    x = 182,656.19

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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.