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Finding the Fourth Proportional to 274,197.64, 378,306.66 and 153,322.60

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Solution

The fourth proportional to 274,197.64, 378,306.66 and 153,322.60 is: 211,537.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,197.64 : 378,306.66 = 153,322.60 : x
  2. Step 2: Convert to fraction form
    274,197.64/378,306.66 = 153,322.60/x
  3. Step 3: Cross multiply
    274,197.64x = 378,306.66 × 153,322.60
  4. Step 4: Simplify right side
    274,197.64x = 58,002,960,708.52
  5. Step 5: Solve for x
    x = 58,002,960,708.52/274,197.64
  6. Step 6: Final answer
    x = 211,537.05

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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.