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Finding the Fourth Proportional to 222,791.76, 307,474.92 and 127,312.74

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Solution

The fourth proportional to 222,791.76, 307,474.92 and 127,312.74 is: 175,704.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,791.76 : 307,474.92 = 127,312.74 : x
  2. Step 2: Convert to fraction form
    222,791.76/307,474.92 = 127,312.74/x
  3. Step 3: Cross multiply
    222,791.76x = 307,474.92 × 127,312.74
  4. Step 4: Simplify right side
    222,791.76x = 39,145,474,546.48
  5. Step 5: Solve for x
    x = 39,145,474,546.48/222,791.76
  6. Step 6: Final answer
    x = 175,704.32

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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.