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Finding the Fourth Proportional to 216,910.42, 325,356.04 and 59,138.88

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Solution

The fourth proportional to 216,910.42, 325,356.04 and 59,138.88 is: 88,705.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,910.42 : 325,356.04 = 59,138.88 : x
  2. Step 2: Convert to fraction form
    216,910.42/325,356.04 = 59,138.88/x
  3. Step 3: Cross multiply
    216,910.42x = 325,356.04 × 59,138.88
  4. Step 4: Simplify right side
    216,910.42x = 19,241,191,806.84
  5. Step 5: Solve for x
    x = 19,241,191,806.84/216,910.42
  6. Step 6: Final answer
    x = 88,705.71

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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.