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Finding the Fourth Proportional to 132,871.61, 199,273.37 and 39,355.49

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Solution

The fourth proportional to 132,871.61, 199,273.37 and 39,355.49 is: 59,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,871.61 : 199,273.37 = 39,355.49 : x
  2. Step 2: Convert to fraction form
    132,871.61/199,273.37 = 39,355.49/x
  3. Step 3: Cross multiply
    132,871.61x = 199,273.37 × 39,355.49
  4. Step 4: Simplify right side
    132,871.61x = 7,842,499,927.16
  5. Step 5: Solve for x
    x = 7,842,499,927.16/132,871.61
  6. Step 6: Final answer
    x = 59,023.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.