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Finding the Fourth Proportional to 239,816.83, 330,938.54 and 132,384.55

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Solution

The fourth proportional to 239,816.83, 330,938.54 and 132,384.55 is: 182,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,816.83 : 330,938.54 = 132,384.55 : x
  2. Step 2: Convert to fraction form
    239,816.83/330,938.54 = 132,384.55/x
  3. Step 3: Cross multiply
    239,816.83x = 330,938.54 × 132,384.55
  4. Step 4: Simplify right side
    239,816.83x = 43,811,149,881.67
  5. Step 5: Solve for x
    x = 43,811,149,881.67/239,816.83
  6. Step 6: Final answer
    x = 182,685.89

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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.