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Finding the Fourth Proportional to 117,292.86, 161,864.74 and 113,054.94

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Solution

The fourth proportional to 117,292.86, 161,864.74 and 113,054.94 is: 156,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,292.86 : 161,864.74 = 113,054.94 : x
  2. Step 2: Convert to fraction form
    117,292.86/161,864.74 = 113,054.94/x
  3. Step 3: Cross multiply
    117,292.86x = 161,864.74 × 113,054.94
  4. Step 4: Simplify right side
    117,292.86x = 18,299,608,468.82
  5. Step 5: Solve for x
    x = 18,299,608,468.82/117,292.86
  6. Step 6: Final answer
    x = 156,016.39

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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.