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Finding the Fourth Proportional to 92,567.70, 138,851.55 and 88,938.90

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Solution

The fourth proportional to 92,567.70, 138,851.55 and 88,938.90 is: 133,408.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,567.70 : 138,851.55 = 88,938.90 : x
  2. Step 2: Convert to fraction form
    92,567.70/138,851.55 = 88,938.90/x
  3. Step 3: Cross multiply
    92,567.70x = 138,851.55 × 88,938.90
  4. Step 4: Simplify right side
    92,567.70x = 12,349,304,120.30
  5. Step 5: Solve for x
    x = 12,349,304,120.30/92,567.70
  6. Step 6: Final answer
    x = 133,408.35

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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.