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Finding the Fourth Proportional to 217,183.68, 325,731.78 and 59,428.08

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Solution

The fourth proportional to 217,183.68, 325,731.78 and 59,428.08 is: 89,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,183.68 : 325,731.78 = 59,428.08 : x
  2. Step 2: Convert to fraction form
    217,183.68/325,731.78 = 59,428.08/x
  3. Step 3: Cross multiply
    217,183.68x = 325,731.78 × 59,428.08
  4. Step 4: Simplify right side
    217,183.68x = 19,357,614,280.38
  5. Step 5: Solve for x
    x = 19,357,614,280.38/217,183.68
  6. Step 6: Final answer
    x = 89,130.15

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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.