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Finding the Fourth Proportional to 58,773.12, 88,140.96 and 19,321.11

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Solution

The fourth proportional to 58,773.12, 88,140.96 and 19,321.11 is: 28,975.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,773.12 : 88,140.96 = 19,321.11 : x
  2. Step 2: Convert to fraction form
    58,773.12/88,140.96 = 19,321.11/x
  3. Step 3: Cross multiply
    58,773.12x = 88,140.96 × 19,321.11
  4. Step 4: Simplify right side
    58,773.12x = 1,702,981,183.67
  5. Step 5: Solve for x
    x = 1,702,981,183.67/58,773.12
  6. Step 6: Final answer
    x = 28,975.51

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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.