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Finding the Fourth Proportional to 91,180.56, 125,831.54 and 50,894.12

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Solution

The fourth proportional to 91,180.56, 125,831.54 and 50,894.12 is: 70,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,180.56 : 125,831.54 = 50,894.12 : x
  2. Step 2: Convert to fraction form
    91,180.56/125,831.54 = 50,894.12/x
  3. Step 3: Cross multiply
    91,180.56x = 125,831.54 × 50,894.12
  4. Step 4: Simplify right side
    91,180.56x = 6,404,085,496.54
  5. Step 5: Solve for x
    x = 6,404,085,496.54/91,180.56
  6. Step 6: Final answer
    x = 70,235.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.