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Finding the Fourth Proportional to 209,818.44, 315,002.01 and 124,584.84

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Solution

The fourth proportional to 209,818.44, 315,002.01 and 124,584.84 is: 187,040.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,818.44 : 315,002.01 = 124,584.84 : x
  2. Step 2: Convert to fraction form
    209,818.44/315,002.01 = 124,584.84/x
  3. Step 3: Cross multiply
    209,818.44x = 315,002.01 × 124,584.84
  4. Step 4: Simplify right side
    209,818.44x = 39,244,475,015.53
  5. Step 5: Solve for x
    x = 39,244,475,015.53/209,818.44
  6. Step 6: Final answer
    x = 187,040.16

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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.