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Finding the Fourth Proportional to 243,344.48, 364,987.97 and 74,864.48

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Solution

The fourth proportional to 243,344.48, 364,987.97 and 74,864.48 is: 112,287.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,344.48 : 364,987.97 = 74,864.48 : x
  2. Step 2: Convert to fraction form
    243,344.48/364,987.97 = 74,864.48/x
  3. Step 3: Cross multiply
    243,344.48x = 364,987.97 × 74,864.48
  4. Step 4: Simplify right side
    243,344.48x = 27,324,634,205.98
  5. Step 5: Solve for x
    x = 27,324,634,205.98/243,344.48
  6. Step 6: Final answer
    x = 112,287.87

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1.5x scale

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.