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Finding the Fourth Proportional to 291,847.19, 437,806.62 and 99,753.39

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Solution

The fourth proportional to 291,847.19, 437,806.62 and 99,753.39 is: 149,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,847.19 : 437,806.62 = 99,753.39 : x
  2. Step 2: Convert to fraction form
    291,847.19/437,806.62 = 99,753.39/x
  3. Step 3: Cross multiply
    291,847.19x = 437,806.62 × 99,753.39
  4. Step 4: Simplify right side
    291,847.19x = 43,672,694,509.44
  5. Step 5: Solve for x
    x = 43,672,694,509.44/291,847.19
  6. Step 6: Final answer
    x = 149,642.34

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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.