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Finding the Fourth Proportional to 222,768.85, 307,392.69 and 127,281.73

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Solution

The fourth proportional to 222,768.85, 307,392.69 and 127,281.73 is: 175,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,768.85 : 307,392.69 = 127,281.73 : x
  2. Step 2: Convert to fraction form
    222,768.85/307,392.69 = 127,281.73/x
  3. Step 3: Cross multiply
    222,768.85x = 307,392.69 × 127,281.73
  4. Step 4: Simplify right side
    222,768.85x = 39,125,473,372.55
  5. Step 5: Solve for x
    x = 39,125,473,372.55/222,768.85
  6. Step 6: Final answer
    x = 175,632.60

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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.