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Finding the Fourth Proportional to 120,897.93, 166,791.37 and 69,901.32

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Solution

The fourth proportional to 120,897.93, 166,791.37 and 69,901.32 is: 96,436.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,897.93 : 166,791.37 = 69,901.32 : x
  2. Step 2: Convert to fraction form
    120,897.93/166,791.37 = 69,901.32/x
  3. Step 3: Cross multiply
    120,897.93x = 166,791.37 × 69,901.32
  4. Step 4: Simplify right side
    120,897.93x = 11,658,936,927.61
  5. Step 5: Solve for x
    x = 11,658,936,927.61/120,897.93
  6. Step 6: Final answer
    x = 96,436.20

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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.