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Finding the Fourth Proportional to 227,486.80, 313,930.90 and 125,518.60

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Solution

The fourth proportional to 227,486.80, 313,930.90 and 125,518.60 is: 173,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,486.80 : 313,930.90 = 125,518.60 : x
  2. Step 2: Convert to fraction form
    227,486.80/313,930.90 = 125,518.60/x
  3. Step 3: Cross multiply
    227,486.80x = 313,930.90 × 125,518.60
  4. Step 4: Simplify right side
    227,486.80x = 39,404,167,064.74
  5. Step 5: Solve for x
    x = 39,404,167,064.74/227,486.80
  6. Step 6: Final answer
    x = 173,215.18

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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.