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Finding the Fourth Proportional to 101,898.87, 152,874.73 and 38,720.08

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Solution

The fourth proportional to 101,898.87, 152,874.73 and 38,720.08 is: 58,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,898.87 : 152,874.73 = 38,720.08 : x
  2. Step 2: Convert to fraction form
    101,898.87/152,874.73 = 38,720.08/x
  3. Step 3: Cross multiply
    101,898.87x = 152,874.73 × 38,720.08
  4. Step 4: Simplify right side
    101,898.87x = 5,919,321,775.58
  5. Step 5: Solve for x
    x = 5,919,321,775.58/101,898.87
  6. Step 6: Final answer
    x = 58,090.16

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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.