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Finding the Fourth Proportional to 73,441.31, 101,349.65 and 39,907.31

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Solution

The fourth proportional to 73,441.31, 101,349.65 and 39,907.31 is: 55,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,441.31 : 101,349.65 = 39,907.31 : x
  2. Step 2: Convert to fraction form
    73,441.31/101,349.65 = 39,907.31/x
  3. Step 3: Cross multiply
    73,441.31x = 101,349.65 × 39,907.31
  4. Step 4: Simplify right side
    73,441.31x = 4,044,591,900.94
  5. Step 5: Solve for x
    x = 4,044,591,900.94/73,441.31
  6. Step 6: Final answer
    x = 55,072.44

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1.5x scale

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.