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Finding the Fourth Proportional to 161,293.91, 241,891.65 and 42,949.89

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Solution

The fourth proportional to 161,293.91, 241,891.65 and 42,949.89 is: 64,411.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,293.91 : 241,891.65 = 42,949.89 : x
  2. Step 2: Convert to fraction form
    161,293.91/241,891.65 = 42,949.89/x
  3. Step 3: Cross multiply
    161,293.91x = 241,891.65 × 42,949.89
  4. Step 4: Simplify right side
    161,293.91x = 10,389,219,759.42
  5. Step 5: Solve for x
    x = 10,389,219,759.42/161,293.91
  6. Step 6: Final answer
    x = 64,411.73

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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.