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Finding the Fourth Proportional to 92,344.32, 138,539.52 and 36,938.88

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Solution

The fourth proportional to 92,344.32, 138,539.52 and 36,938.88 is: 55,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,344.32 : 138,539.52 = 36,938.88 : x
  2. Step 2: Convert to fraction form
    92,344.32/138,539.52 = 36,938.88/x
  3. Step 3: Cross multiply
    92,344.32x = 138,539.52 × 36,938.88
  4. Step 4: Simplify right side
    92,344.32x = 5,117,494,704.54
  5. Step 5: Solve for x
    x = 5,117,494,704.54/92,344.32
  6. Step 6: Final answer
    x = 55,417.54

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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.