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Finding the Fourth Proportional to 144,170.63, 198,947.22 and 86,092.89

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Solution

The fourth proportional to 144,170.63, 198,947.22 and 86,092.89 is: 118,803.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,170.63 : 198,947.22 = 86,092.89 : x
  2. Step 2: Convert to fraction form
    144,170.63/198,947.22 = 86,092.89/x
  3. Step 3: Cross multiply
    144,170.63x = 198,947.22 × 86,092.89
  4. Step 4: Simplify right side
    144,170.63x = 17,127,941,127.27
  5. Step 5: Solve for x
    x = 17,127,941,127.27/144,170.63
  6. Step 6: Final answer
    x = 118,803.27

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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.