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Finding the Fourth Proportional to 86,753.50, 119,720.74 and 50,943.94

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Solution

The fourth proportional to 86,753.50, 119,720.74 and 50,943.94 is: 70,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,753.50 : 119,720.74 = 50,943.94 : x
  2. Step 2: Convert to fraction form
    86,753.50/119,720.74 = 50,943.94/x
  3. Step 3: Cross multiply
    86,753.50x = 119,720.74 × 50,943.94
  4. Step 4: Simplify right side
    86,753.50x = 6,099,046,195.32
  5. Step 5: Solve for x
    x = 6,099,046,195.32/86,753.50
  6. Step 6: Final answer
    x = 70,303.17

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Why These Related Problems?

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