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Finding the Fourth Proportional to 68,775.39, 103,141.49 and 26,652.56

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Solution

The fourth proportional to 68,775.39, 103,141.49 and 26,652.56 is: 39,970.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,775.39 : 103,141.49 = 26,652.56 : x
  2. Step 2: Convert to fraction form
    68,775.39/103,141.49 = 26,652.56/x
  3. Step 3: Cross multiply
    68,775.39x = 103,141.49 × 26,652.56
  4. Step 4: Simplify right side
    68,775.39x = 2,748,984,101.74
  5. Step 5: Solve for x
    x = 2,748,984,101.74/68,775.39
  6. Step 6: Final answer
    x = 39,970.46

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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.