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Finding the Fourth Proportional to 92,422.34, 138,633.49 and 36,288.87

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Solution

The fourth proportional to 92,422.34, 138,633.49 and 36,288.87 is: 54,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,422.34 : 138,633.49 = 36,288.87 : x
  2. Step 2: Convert to fraction form
    92,422.34/138,633.49 = 36,288.87/x
  3. Step 3: Cross multiply
    92,422.34x = 138,633.49 × 36,288.87
  4. Step 4: Simplify right side
    92,422.34x = 5,030,852,696.26
  5. Step 5: Solve for x
    x = 5,030,852,696.26/92,422.34
  6. Step 6: Final answer
    x = 54,433.30

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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.