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Finding the Fourth Proportional to 115,737.70, 173,664.15 and 45,619.30

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Solution

The fourth proportional to 115,737.70, 173,664.15 and 45,619.30 is: 68,451.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,737.70 : 173,664.15 = 45,619.30 : x
  2. Step 2: Convert to fraction form
    115,737.70/173,664.15 = 45,619.30/x
  3. Step 3: Cross multiply
    115,737.70x = 173,664.15 × 45,619.30
  4. Step 4: Simplify right side
    115,737.70x = 7,922,436,958.10
  5. Step 5: Solve for x
    x = 7,922,436,958.10/115,737.70
  6. Step 6: Final answer
    x = 68,451.65

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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.