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Finding the Fourth Proportional to 245,668, 368,501.96 and 68,175.06

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Solution

The fourth proportional to 245,668, 368,501.96 and 68,175.06 is: 102,262.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,668 : 368,501.96 = 68,175.06 : x
  2. Step 2: Convert to fraction form
    245,668/368,501.96 = 68,175.06/x
  3. Step 3: Cross multiply
    245,668x = 368,501.96 × 68,175.06
  4. Step 4: Simplify right side
    245,668x = 25,122,643,233.12
  5. Step 5: Solve for x
    x = 25,122,643,233.12/245,668
  6. Step 6: Final answer
    x = 102,262.58

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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.