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Finding the Fourth Proportional to 74,168.34, 111,251.49 and 18,008.88

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Solution

The fourth proportional to 74,168.34, 111,251.49 and 18,008.88 is: 27,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.34 : 111,251.49 = 18,008.88 : x
  2. Step 2: Convert to fraction form
    74,168.34/111,251.49 = 18,008.88/x
  3. Step 3: Cross multiply
    74,168.34x = 111,251.49 × 18,008.88
  4. Step 4: Simplify right side
    74,168.34x = 2,003,514,733.23
  5. Step 5: Solve for x
    x = 2,003,514,733.23/74,168.34
  6. Step 6: Final answer
    x = 27,013.07

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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.