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Finding the Fourth Proportional to 216,440.58, 324,379.71 and 88,207.14

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Solution

The fourth proportional to 216,440.58, 324,379.71 and 88,207.14 is: 132,196.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,440.58 : 324,379.71 = 88,207.14 : x
  2. Step 2: Convert to fraction form
    216,440.58/324,379.71 = 88,207.14/x
  3. Step 3: Cross multiply
    216,440.58x = 324,379.71 × 88,207.14
  4. Step 4: Simplify right side
    216,440.58x = 28,612,606,493.13
  5. Step 5: Solve for x
    x = 28,612,606,493.13/216,440.58
  6. Step 6: Final answer
    x = 132,196.13

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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.