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Finding the Fourth Proportional to 299,814.81, 449,846.77 and 131,248.37

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Solution

The fourth proportional to 299,814.81, 449,846.77 and 131,248.37 is: 196,927.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,814.81 : 449,846.77 = 131,248.37 : x
  2. Step 2: Convert to fraction form
    299,814.81/449,846.77 = 131,248.37/x
  3. Step 3: Cross multiply
    299,814.81x = 449,846.77 × 131,248.37
  4. Step 4: Simplify right side
    299,814.81x = 59,041,655,312.26
  5. Step 5: Solve for x
    x = 59,041,655,312.26/299,814.81
  6. Step 6: Final answer
    x = 196,927.08

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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.