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Finding the Fourth Proportional to 169,861.72, 254,823.22 and 69,967.38

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Solution

The fourth proportional to 169,861.72, 254,823.22 and 69,967.38 is: 104,963.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,861.72 : 254,823.22 = 69,967.38 : x
  2. Step 2: Convert to fraction form
    169,861.72/254,823.22 = 69,967.38/x
  3. Step 3: Cross multiply
    169,861.72x = 254,823.22 × 69,967.38
  4. Step 4: Simplify right side
    169,861.72x = 17,829,313,066.56
  5. Step 5: Solve for x
    x = 17,829,313,066.56/169,861.72
  6. Step 6: Final answer
    x = 104,963.69

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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.