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Finding the Fourth Proportional to 288,046.66, 431,954.45 and 119,452.45

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Solution

The fourth proportional to 288,046.66, 431,954.45 and 119,452.45 is: 179,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,046.66 : 431,954.45 = 119,452.45 : x
  2. Step 2: Convert to fraction form
    288,046.66/431,954.45 = 119,452.45/x
  3. Step 3: Cross multiply
    288,046.66x = 431,954.45 × 119,452.45
  4. Step 4: Simplify right side
    288,046.66x = 51,598,016,559.65
  5. Step 5: Solve for x
    x = 51,598,016,559.65/288,046.66
  6. Step 6: Final answer
    x = 179,130.76

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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.