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Finding the Fourth Proportional to 265,168.25, 397,801.85 and 87,800.12

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Solution

The fourth proportional to 265,168.25, 397,801.85 and 87,800.12 is: 131,716.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,168.25 : 397,801.85 = 87,800.12 : x
  2. Step 2: Convert to fraction form
    265,168.25/397,801.85 = 87,800.12/x
  3. Step 3: Cross multiply
    265,168.25x = 397,801.85 × 87,800.12
  4. Step 4: Simplify right side
    265,168.25x = 34,927,047,738.21
  5. Step 5: Solve for x
    x = 34,927,047,738.21/265,168.25
  6. Step 6: Final answer
    x = 131,716.56

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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.