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Finding the Fourth Proportional to 117,343.36, 161,935.04 and 63,628.48

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Solution

The fourth proportional to 117,343.36, 161,935.04 and 63,628.48 is: 87,807.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,343.36 : 161,935.04 = 63,628.48 : x
  2. Step 2: Convert to fraction form
    117,343.36/161,935.04 = 63,628.48/x
  3. Step 3: Cross multiply
    117,343.36x = 161,935.04 × 63,628.48
  4. Step 4: Simplify right side
    117,343.36x = 10,303,680,453.94
  5. Step 5: Solve for x
    x = 10,303,680,453.94/117,343.36
  6. Step 6: Final answer
    x = 87,807.95

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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.