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Finding the Fourth Proportional to 71,598.75, 107,377.47 and 21,667.11

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Solution

The fourth proportional to 71,598.75, 107,377.47 and 21,667.11 is: 32,494.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,598.75 : 107,377.47 = 21,667.11 : x
  2. Step 2: Convert to fraction form
    71,598.75/107,377.47 = 21,667.11/x
  3. Step 3: Cross multiply
    71,598.75x = 107,377.47 × 21,667.11
  4. Step 4: Simplify right side
    71,598.75x = 2,326,559,454.01
  5. Step 5: Solve for x
    x = 2,326,559,454.01/71,598.75
  6. Step 6: Final answer
    x = 32,494.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.