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Finding the Fourth Proportional to 115,761.40, 173,651.70 and 36,873.40

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Solution

The fourth proportional to 115,761.40, 173,651.70 and 36,873.40 is: 55,313.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,761.40 : 173,651.70 = 36,873.40 : x
  2. Step 2: Convert to fraction form
    115,761.40/173,651.70 = 36,873.40/x
  3. Step 3: Cross multiply
    115,761.40x = 173,651.70 × 36,873.40
  4. Step 4: Simplify right side
    115,761.40x = 6,403,128,594.78
  5. Step 5: Solve for x
    x = 6,403,128,594.78/115,761.40
  6. Step 6: Final answer
    x = 55,313.16

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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.