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Finding the Fourth Proportional to 57,289.19, 85,923.87 and 15,169.87

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Solution

The fourth proportional to 57,289.19, 85,923.87 and 15,169.87 is: 22,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,289.19 : 85,923.87 = 15,169.87 : x
  2. Step 2: Convert to fraction form
    57,289.19/85,923.87 = 15,169.87/x
  3. Step 3: Cross multiply
    57,289.19x = 85,923.87 × 15,169.87
  4. Step 4: Simplify right side
    57,289.19x = 1,303,454,045.20
  5. Step 5: Solve for x
    x = 1,303,454,045.20/57,289.19
  6. Step 6: Final answer
    x = 22,752.18

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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.