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Finding the Fourth Proportional to 330,807.96, 496,376.10 and 131,123.96

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Solution

The fourth proportional to 330,807.96, 496,376.10 and 131,123.96 is: 196,751.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,807.96 : 496,376.10 = 131,123.96 : x
  2. Step 2: Convert to fraction form
    330,807.96/496,376.10 = 131,123.96/x
  3. Step 3: Cross multiply
    330,807.96x = 496,376.10 × 131,123.96
  4. Step 4: Simplify right side
    330,807.96x = 65,086,799,881.36
  5. Step 5: Solve for x
    x = 65,086,799,881.36/330,807.96
  6. Step 6: Final answer
    x = 196,751.01

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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.