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Finding the Fourth Proportional to 174,690.30, 262,035.45 and 161,859.90

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Solution

The fourth proportional to 174,690.30, 262,035.45 and 161,859.90 is: 242,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,690.30 : 262,035.45 = 161,859.90 : x
  2. Step 2: Convert to fraction form
    174,690.30/262,035.45 = 161,859.90/x
  3. Step 3: Cross multiply
    174,690.30x = 262,035.45 × 161,859.90
  4. Step 4: Simplify right side
    174,690.30x = 42,413,031,733.46
  5. Step 5: Solve for x
    x = 42,413,031,733.46/174,690.30
  6. Step 6: Final answer
    x = 242,789.85

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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.