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Finding the Fourth Proportional to 239,712.01, 330,809.31 and 132,288.82

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Solution

The fourth proportional to 239,712.01, 330,809.31 and 132,288.82 is: 182,562.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,712.01 : 330,809.31 = 132,288.82 : x
  2. Step 2: Convert to fraction form
    239,712.01/330,809.31 = 132,288.82/x
  3. Step 3: Cross multiply
    239,712.01x = 330,809.31 × 132,288.82
  4. Step 4: Simplify right side
    239,712.01x = 43,762,372,437.89
  5. Step 5: Solve for x
    x = 43,762,372,437.89/239,712.01
  6. Step 6: Final answer
    x = 182,562.29

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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.