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Finding the Fourth Proportional to 115,874.70, 173,812.05 and 45,744.90

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Solution

The fourth proportional to 115,874.70, 173,812.05 and 45,744.90 is: 68,617.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,874.70 : 173,812.05 = 45,744.90 : x
  2. Step 2: Convert to fraction form
    115,874.70/173,812.05 = 45,744.90/x
  3. Step 3: Cross multiply
    115,874.70x = 173,812.05 × 45,744.90
  4. Step 4: Simplify right side
    115,874.70x = 7,951,014,846.05
  5. Step 5: Solve for x
    x = 7,951,014,846.05/115,874.70
  6. Step 6: Final answer
    x = 68,617.35

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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.