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Finding the Fourth Proportional to 222,658.56, 307,275.84 and 122,065.92

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Solution

The fourth proportional to 222,658.56, 307,275.84 and 122,065.92 is: 168,454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,658.56 : 307,275.84 = 122,065.92 : x
  2. Step 2: Convert to fraction form
    222,658.56/307,275.84 = 122,065.92/x
  3. Step 3: Cross multiply
    222,658.56x = 307,275.84 × 122,065.92
  4. Step 4: Simplify right side
    222,658.56x = 37,507,908,103.37
  5. Step 5: Solve for x
    x = 37,507,908,103.37/222,658.56
  6. Step 6: Final answer
    x = 168,454.82

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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.