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Finding the Fourth Proportional to 122,495.01, 169,051.47 and 68,053.56

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Solution

The fourth proportional to 122,495.01, 169,051.47 and 68,053.56 is: 93,918.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,495.01 : 169,051.47 = 68,053.56 : x
  2. Step 2: Convert to fraction form
    122,495.01/169,051.47 = 68,053.56/x
  3. Step 3: Cross multiply
    122,495.01x = 169,051.47 × 68,053.56
  4. Step 4: Simplify right side
    122,495.01x = 11,504,554,356.73
  5. Step 5: Solve for x
    x = 11,504,554,356.73/122,495.01
  6. Step 6: Final answer
    x = 93,918.56

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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.