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Finding the Fourth Proportional to 73,860.45, 101,926.11 and 42,028.66

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Solution

The fourth proportional to 73,860.45, 101,926.11 and 42,028.66 is: 57,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,860.45 : 101,926.11 = 42,028.66 : x
  2. Step 2: Convert to fraction form
    73,860.45/101,926.11 = 42,028.66/x
  3. Step 3: Cross multiply
    73,860.45x = 101,926.11 × 42,028.66
  4. Step 4: Simplify right side
    73,860.45x = 4,283,817,822.31
  5. Step 5: Solve for x
    x = 4,283,817,822.31/73,860.45
  6. Step 6: Final answer
    x = 57,998.80

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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.