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Finding the Fourth Proportional to 245,663.48, 368,495.22 and 68,170.55

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Solution

The fourth proportional to 245,663.48, 368,495.22 and 68,170.55 is: 102,255.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,663.48 : 368,495.22 = 68,170.55 : x
  2. Step 2: Convert to fraction form
    245,663.48/368,495.22 = 68,170.55/x
  3. Step 3: Cross multiply
    245,663.48x = 368,495.22 × 68,170.55
  4. Step 4: Simplify right side
    245,663.48x = 25,120,519,977.29
  5. Step 5: Solve for x
    x = 25,120,519,977.29/245,663.48
  6. Step 6: Final answer
    x = 102,255.82

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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.