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Finding the Fourth Proportional to 92,267.70, 138,401.55 and 29,938.20

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Solution

The fourth proportional to 92,267.70, 138,401.55 and 29,938.20 is: 44,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,267.70 : 138,401.55 = 29,938.20 : x
  2. Step 2: Convert to fraction form
    92,267.70/138,401.55 = 29,938.20/x
  3. Step 3: Cross multiply
    92,267.70x = 138,401.55 × 29,938.20
  4. Step 4: Simplify right side
    92,267.70x = 4,143,493,284.21
  5. Step 5: Solve for x
    x = 4,143,493,284.21/92,267.70
  6. Step 6: Final answer
    x = 44,907.30

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1.5x scale

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.