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Finding the Fourth Proportional to 101,281.92, 151,893.60 and 38,937.60

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Solution

The fourth proportional to 101,281.92, 151,893.60 and 38,937.60 is: 58,395.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,281.92 : 151,893.60 = 38,937.60 : x
  2. Step 2: Convert to fraction form
    101,281.92/151,893.60 = 38,937.60/x
  3. Step 3: Cross multiply
    101,281.92x = 151,893.60 × 38,937.60
  4. Step 4: Simplify right side
    101,281.92x = 5,914,372,239.36
  5. Step 5: Solve for x
    x = 5,914,372,239.36/101,281.92
  6. Step 6: Final answer
    x = 58,395.14

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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.