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Finding the Fourth Proportional to 68,612.41, 102,870.01 and 26,456.77

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Solution

The fourth proportional to 68,612.41, 102,870.01 and 26,456.77 is: 39,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,612.41 : 102,870.01 = 26,456.77 : x
  2. Step 2: Convert to fraction form
    68,612.41/102,870.01 = 26,456.77/x
  3. Step 3: Cross multiply
    68,612.41x = 102,870.01 × 26,456.77
  4. Step 4: Simplify right side
    68,612.41x = 2,721,608,194.47
  5. Step 5: Solve for x
    x = 2,721,608,194.47/68,612.41
  6. Step 6: Final answer
    x = 39,666.41

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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.