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Finding the Fourth Proportional to 74,992.25, 103,500.56 and 43,154.99

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Solution

The fourth proportional to 74,992.25, 103,500.56 and 43,154.99 is: 59,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,992.25 : 103,500.56 = 43,154.99 : x
  2. Step 2: Convert to fraction form
    74,992.25/103,500.56 = 43,154.99/x
  3. Step 3: Cross multiply
    74,992.25x = 103,500.56 × 43,154.99
  4. Step 4: Simplify right side
    74,992.25x = 4,466,564,898.52
  5. Step 5: Solve for x
    x = 4,466,564,898.52/74,992.25
  6. Step 6: Final answer
    x = 59,560.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.