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Finding the Fourth Proportional to 227,645.40, 341,759.70 and 121,114.20

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Solution

The fourth proportional to 227,645.40, 341,759.70 and 121,114.20 is: 181,826.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,645.40 : 341,759.70 = 121,114.20 : x
  2. Step 2: Convert to fraction form
    227,645.40/341,759.70 = 121,114.20/x
  3. Step 3: Cross multiply
    227,645.40x = 341,759.70 × 121,114.20
  4. Step 4: Simplify right side
    227,645.40x = 41,391,952,657.74
  5. Step 5: Solve for x
    x = 41,391,952,657.74/227,645.40
  6. Step 6: Final answer
    x = 181,826.44

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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.