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Finding the Fourth Proportional to 84,951.99, 127,348.40 and 28,752.77

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Solution

The fourth proportional to 84,951.99, 127,348.40 and 28,752.77 is: 43,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,951.99 : 127,348.40 = 28,752.77 : x
  2. Step 2: Convert to fraction form
    84,951.99/127,348.40 = 28,752.77/x
  3. Step 3: Cross multiply
    84,951.99x = 127,348.40 × 28,752.77
  4. Step 4: Simplify right side
    84,951.99x = 3,661,619,645.32
  5. Step 5: Solve for x
    x = 3,661,619,645.32/84,951.99
  6. Step 6: Final answer
    x = 43,102.22

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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.