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Finding the Fourth Proportional to 99,950.49, 149,967.18 and 43,761.60

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Solution

The fourth proportional to 99,950.49, 149,967.18 and 43,761.60 is: 65,660.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,950.49 : 149,967.18 = 43,761.60 : x
  2. Step 2: Convert to fraction form
    99,950.49/149,967.18 = 43,761.60/x
  3. Step 3: Cross multiply
    99,950.49x = 149,967.18 × 43,761.60
  4. Step 4: Simplify right side
    99,950.49x = 6,562,803,744.29
  5. Step 5: Solve for x
    x = 6,562,803,744.29/99,950.49
  6. Step 6: Final answer
    x = 65,660.55

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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.