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Finding the Fourth Proportional to 118,889.66, 164,079.47 and 67,910.02

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Solution

The fourth proportional to 118,889.66, 164,079.47 and 67,910.02 is: 93,722.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889.66 : 164,079.47 = 67,910.02 : x
  2. Step 2: Convert to fraction form
    118,889.66/164,079.47 = 67,910.02/x
  3. Step 3: Cross multiply
    118,889.66x = 164,079.47 × 67,910.02
  4. Step 4: Simplify right side
    118,889.66x = 11,142,639,848.87
  5. Step 5: Solve for x
    x = 11,142,639,848.87/118,889.66
  6. Step 6: Final answer
    x = 93,722.53

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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.