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Finding the Fourth Proportional to 115,885.40, 173,892.90 and 49,314.20

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Solution

The fourth proportional to 115,885.40, 173,892.90 and 49,314.20 is: 73,998.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,885.40 : 173,892.90 = 49,314.20 : x
  2. Step 2: Convert to fraction form
    115,885.40/173,892.90 = 49,314.20/x
  3. Step 3: Cross multiply
    115,885.40x = 173,892.90 × 49,314.20
  4. Step 4: Simplify right side
    115,885.40x = 8,575,389,249.18
  5. Step 5: Solve for x
    x = 8,575,389,249.18/115,885.40
  6. Step 6: Final answer
    x = 73,998.88

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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.