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Finding the Fourth Proportional to 209,791.75, 314,737.44 and 69,550.38

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Solution

The fourth proportional to 209,791.75, 314,737.44 and 69,550.38 is: 104,342.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,791.75 : 314,737.44 = 69,550.38 : x
  2. Step 2: Convert to fraction form
    209,791.75/314,737.44 = 69,550.38/x
  3. Step 3: Cross multiply
    209,791.75x = 314,737.44 × 69,550.38
  4. Step 4: Simplify right side
    209,791.75x = 21,890,108,552.23
  5. Step 5: Solve for x
    x = 21,890,108,552.23/209,791.75
  6. Step 6: Final answer
    x = 104,342.08

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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.