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Finding the Fourth Proportional to 115,908.60, 173,862.90 and 45,751.80

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Solution

The fourth proportional to 115,908.60, 173,862.90 and 45,751.80 is: 68,627.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,908.60 : 173,862.90 = 45,751.80 : x
  2. Step 2: Convert to fraction form
    115,908.60/173,862.90 = 45,751.80/x
  3. Step 3: Cross multiply
    115,908.60x = 173,862.90 × 45,751.80
  4. Step 4: Simplify right side
    115,908.60x = 7,954,540,628.22
  5. Step 5: Solve for x
    x = 7,954,540,628.22/115,908.60
  6. Step 6: Final answer
    x = 68,627.70

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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.