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Finding the Fourth Proportional to 91,832.40, 137,894.40 and 62,380.80

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Solution

The fourth proportional to 91,832.40, 137,894.40 and 62,380.80 is: 93,670.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,832.40 : 137,894.40 = 62,380.80 : x
  2. Step 2: Convert to fraction form
    91,832.40/137,894.40 = 62,380.80/x
  3. Step 3: Cross multiply
    91,832.40x = 137,894.40 × 62,380.80
  4. Step 4: Simplify right side
    91,832.40x = 8,601,962,987.52
  5. Step 5: Solve for x
    x = 8,601,962,987.52/91,832.40
  6. Step 6: Final answer
    x = 93,670.24

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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.