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Finding the Fourth Proportional to 222,819.32, 307,491.16 and 127,325.78

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Solution

The fourth proportional to 222,819.32, 307,491.16 and 127,325.78 is: 175,709.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,819.32 : 307,491.16 = 127,325.78 : x
  2. Step 2: Convert to fraction form
    222,819.32/307,491.16 = 127,325.78/x
  3. Step 3: Cross multiply
    222,819.32x = 307,491.16 × 127,325.78
  4. Step 4: Simplify right side
    222,819.32x = 39,151,551,790.10
  5. Step 5: Solve for x
    x = 39,151,551,790.10/222,819.32
  6. Step 6: Final answer
    x = 175,709.86

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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.