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Finding the Fourth Proportional to 108,227.95, 162,344.72 and 51,288.51

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Solution

The fourth proportional to 108,227.95, 162,344.72 and 51,288.51 is: 76,934.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,227.95 : 162,344.72 = 51,288.51 : x
  2. Step 2: Convert to fraction form
    108,227.95/162,344.72 = 51,288.51/x
  3. Step 3: Cross multiply
    108,227.95x = 162,344.72 × 51,288.51
  4. Step 4: Simplify right side
    108,227.95x = 8,326,418,795.17
  5. Step 5: Solve for x
    x = 8,326,418,795.17/108,227.95
  6. Step 6: Final answer
    x = 76,934.09

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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.