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Finding the Fourth Proportional to 159,903.90, 220,667.94 and 88,284.42

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Solution

The fourth proportional to 159,903.90, 220,667.94 and 88,284.42 is: 121,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,903.90 : 220,667.94 = 88,284.42 : x
  2. Step 2: Convert to fraction form
    159,903.90/220,667.94 = 88,284.42/x
  3. Step 3: Cross multiply
    159,903.90x = 220,667.94 × 88,284.42
  4. Step 4: Simplify right side
    159,903.90x = 19,481,541,095.49
  5. Step 5: Solve for x
    x = 19,481,541,095.49/159,903.90
  6. Step 6: Final answer
    x = 121,832.81

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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.