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Finding the Fourth Proportional to 216,528.98, 324,755.16 and 58,769.72

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Solution

The fourth proportional to 216,528.98, 324,755.16 and 58,769.72 is: 88,144.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,528.98 : 324,755.16 = 58,769.72 : x
  2. Step 2: Convert to fraction form
    216,528.98/324,755.16 = 58,769.72/x
  3. Step 3: Cross multiply
    216,528.98x = 324,755.16 × 58,769.72
  4. Step 4: Simplify right side
    216,528.98x = 19,085,769,821.76
  5. Step 5: Solve for x
    x = 19,085,769,821.76/216,528.98
  6. Step 6: Final answer
    x = 88,144.18

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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.