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Finding the Fourth Proportional to 89,053.54, 122,646.09 and 68,835.94

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Solution

The fourth proportional to 89,053.54, 122,646.09 and 68,835.94 is: 94,802.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,053.54 : 122,646.09 = 68,835.94 : x
  2. Step 2: Convert to fraction form
    89,053.54/122,646.09 = 68,835.94/x
  3. Step 3: Cross multiply
    89,053.54x = 122,646.09 × 68,835.94
  4. Step 4: Simplify right side
    89,053.54x = 8,442,458,892.47
  5. Step 5: Solve for x
    x = 8,442,458,892.47/89,053.54
  6. Step 6: Final answer
    x = 94,802.06

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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.