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Finding the Fourth Proportional to 266,173.81, 399,063.89 and 160,969.39

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Solution

The fourth proportional to 266,173.81, 399,063.89 and 160,969.39 is: 241,335.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,173.81 : 399,063.89 = 160,969.39 : x
  2. Step 2: Convert to fraction form
    266,173.81/399,063.89 = 160,969.39/x
  3. Step 3: Cross multiply
    266,173.81x = 399,063.89 × 160,969.39
  4. Step 4: Simplify right side
    266,173.81x = 64,237,071,539.56
  5. Step 5: Solve for x
    x = 64,237,071,539.56/266,173.81
  6. Step 6: Final answer
    x = 241,335.05

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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.