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Finding the Fourth Proportional to 209,801.91, 314,977.27 and 124,568.37

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Solution

The fourth proportional to 209,801.91, 314,977.27 and 124,568.37 is: 187,015.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,801.91 : 314,977.27 = 124,568.37 : x
  2. Step 2: Convert to fraction form
    209,801.91/314,977.27 = 124,568.37/x
  3. Step 3: Cross multiply
    209,801.91x = 314,977.27 × 124,568.37
  4. Step 4: Simplify right side
    209,801.91x = 39,236,205,110.95
  5. Step 5: Solve for x
    x = 39,236,205,110.95/209,801.91
  6. Step 6: Final answer
    x = 187,015.48

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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.