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Finding the Fourth Proportional to 68,275.13, 102,429.97 and 19,027.13

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Solution

The fourth proportional to 68,275.13, 102,429.97 and 19,027.13 is: 28,545.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,275.13 : 102,429.97 = 19,027.13 : x
  2. Step 2: Convert to fraction form
    68,275.13/102,429.97 = 19,027.13/x
  3. Step 3: Cross multiply
    68,275.13x = 102,429.97 × 19,027.13
  4. Step 4: Simplify right side
    68,275.13x = 1,948,947,795.37
  5. Step 5: Solve for x
    x = 1,948,947,795.37/68,275.13
  6. Step 6: Final answer
    x = 28,545.50

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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.