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Finding the Fourth Proportional to 265,449.66, 397,933.80 and 132,370.74

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Solution

The fourth proportional to 265,449.66, 397,933.80 and 132,370.74 is: 198,436.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,449.66 : 397,933.80 = 132,370.74 : x
  2. Step 2: Convert to fraction form
    265,449.66/397,933.80 = 132,370.74/x
  3. Step 3: Cross multiply
    265,449.66x = 397,933.80 × 132,370.74
  4. Step 4: Simplify right side
    265,449.66x = 52,674,791,577.01
  5. Step 5: Solve for x
    x = 52,674,791,577.01/265,449.66
  6. Step 6: Final answer
    x = 198,436.09

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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.