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Finding the Fourth Proportional to 239,778.54, 330,870.80 and 132,341.63

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Solution

The fourth proportional to 239,778.54, 330,870.80 and 132,341.63 is: 182,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,778.54 : 330,870.80 = 132,341.63 : x
  2. Step 2: Convert to fraction form
    239,778.54/330,870.80 = 132,341.63/x
  3. Step 3: Cross multiply
    239,778.54x = 330,870.80 × 132,341.63
  4. Step 4: Simplify right side
    239,778.54x = 43,787,978,675.34
  5. Step 5: Solve for x
    x = 43,787,978,675.34/239,778.54
  6. Step 6: Final answer
    x = 182,618.42

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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.