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Finding the Fourth Proportional to 150,772.48, 208,065.60 and 83,704

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Solution

The fourth proportional to 150,772.48, 208,065.60 and 83,704 is: 115,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,772.48 : 208,065.60 = 83,704 : x
  2. Step 2: Convert to fraction form
    150,772.48/208,065.60 = 83,704/x
  3. Step 3: Cross multiply
    150,772.48x = 208,065.60 × 83,704
  4. Step 4: Simplify right side
    150,772.48x = 17,415,922,982.40
  5. Step 5: Solve for x
    x = 17,415,922,982.40/150,772.48
  6. Step 6: Final answer
    x = 115,511.29

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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.