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Finding the Fourth Proportional to 92,074.80, 138,119.16 and 25,514.16

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Solution

The fourth proportional to 92,074.80, 138,119.16 and 25,514.16 is: 38,273.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,074.80 : 138,119.16 = 25,514.16 : x
  2. Step 2: Convert to fraction form
    92,074.80/138,119.16 = 25,514.16/x
  3. Step 3: Cross multiply
    92,074.80x = 138,119.16 × 25,514.16
  4. Step 4: Simplify right side
    92,074.80x = 3,523,994,347.31
  5. Step 5: Solve for x
    x = 3,523,994,347.31/92,074.80
  6. Step 6: Final answer
    x = 38,273.17

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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.