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Finding the Fourth Proportional to 133,720.82, 200,831.15 and 117,716.09

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Solution

The fourth proportional to 133,720.82, 200,831.15 and 117,716.09 is: 176,794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,720.82 : 200,831.15 = 117,716.09 : x
  2. Step 2: Convert to fraction form
    133,720.82/200,831.15 = 117,716.09/x
  3. Step 3: Cross multiply
    133,720.82x = 200,831.15 × 117,716.09
  4. Step 4: Simplify right side
    133,720.82x = 23,641,056,356.19
  5. Step 5: Solve for x
    x = 23,641,056,356.19/133,720.82
  6. Step 6: Final answer
    x = 176,794.13

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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.