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Finding the Fourth Proportional to 101,025.36, 151,543.44 and 38,691

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Solution

The fourth proportional to 101,025.36, 151,543.44 and 38,691 is: 58,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,025.36 : 151,543.44 = 38,691 : x
  2. Step 2: Convert to fraction form
    101,025.36/151,543.44 = 38,691/x
  3. Step 3: Cross multiply
    101,025.36x = 151,543.44 × 38,691
  4. Step 4: Simplify right side
    101,025.36x = 5,863,367,237.04
  5. Step 5: Solve for x
    x = 5,863,367,237.04/101,025.36
  6. Step 6: Final answer
    x = 58,038.57

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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.