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Finding the Fourth Proportional to 209,093.65, 313,673.28 and 124,948.83

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Solution

The fourth proportional to 209,093.65, 313,673.28 and 124,948.83 is: 187,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,093.65 : 313,673.28 = 124,948.83 : x
  2. Step 2: Convert to fraction form
    209,093.65/313,673.28 = 124,948.83/x
  3. Step 3: Cross multiply
    209,093.65x = 313,673.28 × 124,948.83
  4. Step 4: Simplify right side
    209,093.65x = 39,193,109,335.82
  5. Step 5: Solve for x
    x = 39,193,109,335.82/209,093.65
  6. Step 6: Final answer
    x = 187,442.85

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1.5x scale

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.