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Finding the Fourth Proportional to 92,438.58, 138,647.16 and 25,884.03

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Solution

The fourth proportional to 92,438.58, 138,647.16 and 25,884.03 is: 38,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,438.58 : 138,647.16 = 25,884.03 : x
  2. Step 2: Convert to fraction form
    92,438.58/138,647.16 = 25,884.03/x
  3. Step 3: Cross multiply
    92,438.58x = 138,647.16 × 25,884.03
  4. Step 4: Simplify right side
    92,438.58x = 3,588,747,248.85
  5. Step 5: Solve for x
    x = 3,588,747,248.85/92,438.58
  6. Step 6: Final answer
    x = 38,823.05

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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.