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Finding the Fourth Proportional to 218,357.22, 301,338.84 and 122,867.28

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Solution

The fourth proportional to 218,357.22, 301,338.84 and 122,867.28 is: 169,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,357.22 : 301,338.84 = 122,867.28 : x
  2. Step 2: Convert to fraction form
    218,357.22/301,338.84 = 122,867.28/x
  3. Step 3: Cross multiply
    218,357.22x = 301,338.84 × 122,867.28
  4. Step 4: Simplify right side
    218,357.22x = 37,024,683,629.16
  5. Step 5: Solve for x
    x = 37,024,683,629.16/218,357.22
  6. Step 6: Final answer
    x = 169,560.15

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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.