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Finding the Fourth Proportional to 132,362.60, 198,543.90 and 57,518.60

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Solution

The fourth proportional to 132,362.60, 198,543.90 and 57,518.60 is: 86,277.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,362.60 : 198,543.90 = 57,518.60 : x
  2. Step 2: Convert to fraction form
    132,362.60/198,543.90 = 57,518.60/x
  3. Step 3: Cross multiply
    132,362.60x = 198,543.90 × 57,518.60
  4. Step 4: Simplify right side
    132,362.60x = 11,419,967,166.54
  5. Step 5: Solve for x
    x = 11,419,967,166.54/132,362.60
  6. Step 6: Final answer
    x = 86,277.90

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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.