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Finding the Fourth Proportional to 91,180.72, 125,835.72 and 50,902.40

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Solution

The fourth proportional to 91,180.72, 125,835.72 and 50,902.40 is: 70,248.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,180.72 : 125,835.72 = 50,902.40 : x
  2. Step 2: Convert to fraction form
    91,180.72/125,835.72 = 50,902.40/x
  3. Step 3: Cross multiply
    91,180.72x = 125,835.72 × 50,902.40
  4. Step 4: Simplify right side
    91,180.72x = 6,405,340,153.73
  5. Step 5: Solve for x
    x = 6,405,340,153.73/91,180.72
  6. Step 6: Final answer
    x = 70,248.84

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