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Finding the Fourth Proportional to 180,223.75, 248,591.60 and 115,590.61

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Solution

The fourth proportional to 180,223.75, 248,591.60 and 115,590.61 is: 159,439.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,223.75 : 248,591.60 = 115,590.61 : x
  2. Step 2: Convert to fraction form
    180,223.75/248,591.60 = 115,590.61/x
  3. Step 3: Cross multiply
    180,223.75x = 248,591.60 × 115,590.61
  4. Step 4: Simplify right side
    180,223.75x = 28,734,854,684.88
  5. Step 5: Solve for x
    x = 28,734,854,684.88/180,223.75
  6. Step 6: Final answer
    x = 159,439.89

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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.