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Finding the Fourth Proportional to 68,501.13, 102,751.89 and 26,948.13

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Solution

The fourth proportional to 68,501.13, 102,751.89 and 26,948.13 is: 40,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,501.13 : 102,751.89 = 26,948.13 : x
  2. Step 2: Convert to fraction form
    68,501.13/102,751.89 = 26,948.13/x
  3. Step 3: Cross multiply
    68,501.13x = 102,751.89 × 26,948.13
  4. Step 4: Simplify right side
    68,501.13x = 2,768,971,289.47
  5. Step 5: Solve for x
    x = 2,768,971,289.47/68,501.13
  6. Step 6: Final answer
    x = 40,422.27

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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.