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Finding the Fourth Proportional to 99,714.84, 149,571.85 and 40,550.01

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Solution

The fourth proportional to 99,714.84, 149,571.85 and 40,550.01 is: 60,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,714.84 : 149,571.85 = 40,550.01 : x
  2. Step 2: Convert to fraction form
    99,714.84/149,571.85 = 40,550.01/x
  3. Step 3: Cross multiply
    99,714.84x = 149,571.85 × 40,550.01
  4. Step 4: Simplify right side
    99,714.84x = 6,065,140,013.22
  5. Step 5: Solve for x
    x = 6,065,140,013.22/99,714.84
  6. Step 6: Final answer
    x = 60,824.85

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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.