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Finding the Fourth Proportional to 215,043.67, 296,743.45 and 119,544.55

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Solution

The fourth proportional to 215,043.67, 296,743.45 and 119,544.55 is: 164,962.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,043.67 : 296,743.45 = 119,544.55 : x
  2. Step 2: Convert to fraction form
    215,043.67/296,743.45 = 119,544.55/x
  3. Step 3: Cross multiply
    215,043.67x = 296,743.45 × 119,544.55
  4. Step 4: Simplify right side
    215,043.67x = 35,474,062,195.70
  5. Step 5: Solve for x
    x = 35,474,062,195.70/215,043.67
  6. Step 6: Final answer
    x = 164,962.13

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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.