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Finding the Fourth Proportional to 91,833.75, 137,750.63 and 36,429.75

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Solution

The fourth proportional to 91,833.75, 137,750.63 and 36,429.75 is: 54,644.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,833.75 : 137,750.63 = 36,429.75 : x
  2. Step 2: Convert to fraction form
    91,833.75/137,750.63 = 36,429.75/x
  3. Step 3: Cross multiply
    91,833.75x = 137,750.63 × 36,429.75
  4. Step 4: Simplify right side
    91,833.75x = 5,018,220,831.09
  5. Step 5: Solve for x
    x = 5,018,220,831.09/91,833.75
  6. Step 6: Final answer
    x = 54,644.63

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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.