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Finding the Fourth Proportional to 251,290.42, 346,861.56 and 160,889.86

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Solution

The fourth proportional to 251,290.42, 346,861.56 and 160,889.86 is: 222,079.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,290.42 : 346,861.56 = 160,889.86 : x
  2. Step 2: Convert to fraction form
    251,290.42/346,861.56 = 160,889.86/x
  3. Step 3: Cross multiply
    251,290.42x = 346,861.56 × 160,889.86
  4. Step 4: Simplify right side
    251,290.42x = 55,806,507,827.78
  5. Step 5: Solve for x
    x = 55,806,507,827.78/251,290.42
  6. Step 6: Final answer
    x = 222,079.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.