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Finding the Fourth Proportional to 117,054.84, 161,534.50 and 63,338.68

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Solution

The fourth proportional to 117,054.84, 161,534.50 and 63,338.68 is: 87,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,054.84 : 161,534.50 = 63,338.68 : x
  2. Step 2: Convert to fraction form
    117,054.84/161,534.50 = 63,338.68/x
  3. Step 3: Cross multiply
    117,054.84x = 161,534.50 × 63,338.68
  4. Step 4: Simplify right side
    117,054.84x = 10,231,382,004.46
  5. Step 5: Solve for x
    x = 10,231,382,004.46/117,054.84
  6. Step 6: Final answer
    x = 87,406.74

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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.