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Finding the Fourth Proportional to 239,685.66, 330,760.50 and 132,255.72

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Solution

The fourth proportional to 239,685.66, 330,760.50 and 132,255.72 is: 182,509.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,685.66 : 330,760.50 = 132,255.72 : x
  2. Step 2: Convert to fraction form
    239,685.66/330,760.50 = 132,255.72/x
  3. Step 3: Cross multiply
    239,685.66x = 330,760.50 × 132,255.72
  4. Step 4: Simplify right side
    239,685.66x = 43,744,968,075.06
  5. Step 5: Solve for x
    x = 43,744,968,075.06/239,685.66
  6. Step 6: Final answer
    x = 182,509.74

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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.