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Finding the Fourth Proportional to 118,315.35, 177,310.22 and 51,811.11

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Solution

The fourth proportional to 118,315.35, 177,310.22 and 51,811.11 is: 77,645.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,315.35 : 177,310.22 = 51,811.11 : x
  2. Step 2: Convert to fraction form
    118,315.35/177,310.22 = 51,811.11/x
  3. Step 3: Cross multiply
    118,315.35x = 177,310.22 × 51,811.11
  4. Step 4: Simplify right side
    118,315.35x = 9,186,639,053.49
  5. Step 5: Solve for x
    x = 9,186,639,053.49/118,315.35
  6. Step 6: Final answer
    x = 77,645.37

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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.