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Finding the Fourth Proportional to 160,735.42, 240,869.85 and 90,464.68

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Solution

The fourth proportional to 160,735.42, 240,869.85 and 90,464.68 is: 135,565.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,735.42 : 240,869.85 = 90,464.68 : x
  2. Step 2: Convert to fraction form
    160,735.42/240,869.85 = 90,464.68/x
  3. Step 3: Cross multiply
    160,735.42x = 240,869.85 × 90,464.68
  4. Step 4: Simplify right side
    160,735.42x = 21,790,213,901.90
  5. Step 5: Solve for x
    x = 21,790,213,901.90/160,735.42
  6. Step 6: Final answer
    x = 135,565.73

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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.