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Finding the Fourth Proportional to 115,161.60, 158,650.74 and 109,846.92

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Solution

The fourth proportional to 115,161.60, 158,650.74 and 109,846.92 is: 151,329.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,161.60 : 158,650.74 = 109,846.92 : x
  2. Step 2: Convert to fraction form
    115,161.60/158,650.74 = 109,846.92/x
  3. Step 3: Cross multiply
    115,161.60x = 158,650.74 × 109,846.92
  4. Step 4: Simplify right side
    115,161.60x = 17,427,295,144.72
  5. Step 5: Solve for x
    x = 17,427,295,144.72/115,161.60
  6. Step 6: Final answer
    x = 151,329.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.