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Finding the Fourth Proportional to 118,245.88, 177,363.86 and 55,044.28

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Solution

The fourth proportional to 118,245.88, 177,363.86 and 55,044.28 is: 82,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,245.88 : 177,363.86 = 55,044.28 : x
  2. Step 2: Convert to fraction form
    118,245.88/177,363.86 = 55,044.28/x
  3. Step 3: Cross multiply
    118,245.88x = 177,363.86 × 55,044.28
  4. Step 4: Simplify right side
    118,245.88x = 9,762,865,253.09
  5. Step 5: Solve for x
    x = 9,762,865,253.09/118,245.88
  6. Step 6: Final answer
    x = 82,564.11

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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.