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Finding the Fourth Proportional to 117,371.94, 161,972.81 and 63,656.74

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Solution

The fourth proportional to 117,371.94, 161,972.81 and 63,656.74 is: 87,846.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,371.94 : 161,972.81 = 63,656.74 : x
  2. Step 2: Convert to fraction form
    117,371.94/161,972.81 = 63,656.74/x
  3. Step 3: Cross multiply
    117,371.94x = 161,972.81 × 63,656.74
  4. Step 4: Simplify right side
    117,371.94x = 10,310,661,053.24
  5. Step 5: Solve for x
    x = 10,310,661,053.24/117,371.94
  6. Step 6: Final answer
    x = 87,846.05

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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.