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Finding the Fourth Proportional to 92,406.84, 138,625.20 and 36,216.46

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Solution

The fourth proportional to 92,406.84, 138,625.20 and 36,216.46 is: 54,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,406.84 : 138,625.20 = 36,216.46 : x
  2. Step 2: Convert to fraction form
    92,406.84/138,625.20 = 36,216.46/x
  3. Step 3: Cross multiply
    92,406.84x = 138,625.20 × 36,216.46
  4. Step 4: Simplify right side
    92,406.84x = 5,020,514,010.79
  5. Step 5: Solve for x
    x = 5,020,514,010.79/92,406.84
  6. Step 6: Final answer
    x = 54,330.55

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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.