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Finding the Fourth Proportional to 239,823.60, 330,957.84 and 132,391.68

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Solution

The fourth proportional to 239,823.60, 330,957.84 and 132,391.68 is: 182,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,823.60 : 330,957.84 = 132,391.68 : x
  2. Step 2: Convert to fraction form
    239,823.60/330,957.84 = 132,391.68/x
  3. Step 3: Cross multiply
    239,823.60x = 330,957.84 × 132,391.68
  4. Step 4: Simplify right side
    239,823.60x = 43,816,064,446.77
  5. Step 5: Solve for x
    x = 43,816,064,446.77/239,823.60
  6. Step 6: Final answer
    x = 182,701.22

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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.