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Finding the Fourth Proportional to 91,831.60, 137,682.60 and 41,935.60

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Solution

The fourth proportional to 91,831.60, 137,682.60 and 41,935.60 is: 62,873.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,831.60 : 137,682.60 = 41,935.60 : x
  2. Step 2: Convert to fraction form
    91,831.60/137,682.60 = 41,935.60/x
  3. Step 3: Cross multiply
    91,831.60x = 137,682.60 × 41,935.60
  4. Step 4: Simplify right side
    91,831.60x = 5,773,802,440.56
  5. Step 5: Solve for x
    x = 5,773,802,440.56/91,831.60
  6. Step 6: Final answer
    x = 62,873.81

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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.