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Finding the Fourth Proportional to 73,938.71, 110,965.57 and 51,607.01

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Solution

The fourth proportional to 73,938.71, 110,965.57 and 51,607.01 is: 77,450.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,938.71 : 110,965.57 = 51,607.01 : x
  2. Step 2: Convert to fraction form
    73,938.71/110,965.57 = 51,607.01/x
  3. Step 3: Cross multiply
    73,938.71x = 110,965.57 × 51,607.01
  4. Step 4: Simplify right side
    73,938.71x = 5,726,600,725.82
  5. Step 5: Solve for x
    x = 5,726,600,725.82/73,938.71
  6. Step 6: Final answer
    x = 77,450.65

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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.