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Finding the Fourth Proportional to 118,267.62, 177,305.64 and 80,733.16

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Solution

The fourth proportional to 118,267.62, 177,305.64 and 80,733.16 is: 121,034.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,267.62 : 177,305.64 = 80,733.16 : x
  2. Step 2: Convert to fraction form
    118,267.62/177,305.64 = 80,733.16/x
  3. Step 3: Cross multiply
    118,267.62x = 177,305.64 × 80,733.16
  4. Step 4: Simplify right side
    118,267.62x = 14,314,444,603.02
  5. Step 5: Solve for x
    x = 14,314,444,603.02/118,267.62
  6. Step 6: Final answer
    x = 121,034.36

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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.