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Finding the Fourth Proportional to 118,727.66, 177,808.77 and 68,702.33

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Solution

The fourth proportional to 118,727.66, 177,808.77 and 68,702.33 is: 102,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,727.66 : 177,808.77 = 68,702.33 : x
  2. Step 2: Convert to fraction form
    118,727.66/177,808.77 = 68,702.33/x
  3. Step 3: Cross multiply
    118,727.66x = 177,808.77 × 68,702.33
  4. Step 4: Simplify right side
    118,727.66x = 12,215,875,904.39
  5. Step 5: Solve for x
    x = 12,215,875,904.39/118,727.66
  6. Step 6: Final answer
    x = 102,889.89

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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.