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Finding the Fourth Proportional to 117,484.94, 176,005.46 and 91,060.31

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Solution

The fourth proportional to 117,484.94, 176,005.46 and 91,060.31 is: 136,418.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,484.94 : 176,005.46 = 91,060.31 : x
  2. Step 2: Convert to fraction form
    117,484.94/176,005.46 = 91,060.31/x
  3. Step 3: Cross multiply
    117,484.94x = 176,005.46 × 91,060.31
  4. Step 4: Simplify right side
    117,484.94x = 16,027,110,413.96
  5. Step 5: Solve for x
    x = 16,027,110,413.96/117,484.94
  6. Step 6: Final answer
    x = 136,418.43

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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.