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Finding the Fourth Proportional to 101,427.80, 152,229.17 and 39,142.04

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Solution

The fourth proportional to 101,427.80, 152,229.17 and 39,142.04 is: 58,746.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,427.80 : 152,229.17 = 39,142.04 : x
  2. Step 2: Convert to fraction form
    101,427.80/152,229.17 = 39,142.04/x
  3. Step 3: Cross multiply
    101,427.80x = 152,229.17 × 39,142.04
  4. Step 4: Simplify right side
    101,427.80x = 5,958,559,598.02
  5. Step 5: Solve for x
    x = 5,958,559,598.02/101,427.80
  6. Step 6: Final answer
    x = 58,746.81

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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.