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Finding the Fourth Proportional to 161,188.79, 241,849.31 and 85,267.53

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Solution

The fourth proportional to 161,188.79, 241,849.31 and 85,267.53 is: 127,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,188.79 : 241,849.31 = 85,267.53 : x
  2. Step 2: Convert to fraction form
    161,188.79/241,849.31 = 85,267.53/x
  3. Step 3: Cross multiply
    161,188.79x = 241,849.31 × 85,267.53
  4. Step 4: Simplify right side
    161,188.79x = 20,621,892,869.57
  5. Step 5: Solve for x
    x = 20,621,892,869.57/161,188.79
  6. Step 6: Final answer
    x = 127,936.28

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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.