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Finding the Fourth Proportional to 61,144.60, 91,803.30 and 37,816.60

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Solution

The fourth proportional to 61,144.60, 91,803.30 and 37,816.60 is: 56,778.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,144.60 : 91,803.30 = 37,816.60 : x
  2. Step 2: Convert to fraction form
    61,144.60/91,803.30 = 37,816.60/x
  3. Step 3: Cross multiply
    61,144.60x = 91,803.30 × 37,816.60
  4. Step 4: Simplify right side
    61,144.60x = 3,471,688,674.78
  5. Step 5: Solve for x
    x = 3,471,688,674.78/61,144.60
  6. Step 6: Final answer
    x = 56,778.34

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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.