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Finding the Fourth Proportional to 222,905.34, 307,630.62 and 127,393.56

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Solution

The fourth proportional to 222,905.34, 307,630.62 and 127,393.56 is: 175,815.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,905.34 : 307,630.62 = 127,393.56 : x
  2. Step 2: Convert to fraction form
    222,905.34/307,630.62 = 127,393.56/x
  3. Step 3: Cross multiply
    222,905.34x = 307,630.62 × 127,393.56
  4. Step 4: Simplify right side
    222,905.34x = 39,190,159,846.81
  5. Step 5: Solve for x
    x = 39,190,159,846.81/222,905.34
  6. Step 6: Final answer
    x = 175,815.26

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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.