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Finding the Fourth Proportional to 117,194.51, 161,728.47 and 63,479.36

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Solution

The fourth proportional to 117,194.51, 161,728.47 and 63,479.36 is: 87,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,194.51 : 161,728.47 = 63,479.36 : x
  2. Step 2: Convert to fraction form
    117,194.51/161,728.47 = 63,479.36/x
  3. Step 3: Cross multiply
    117,194.51x = 161,728.47 × 63,479.36
  4. Step 4: Simplify right side
    117,194.51x = 10,266,419,769.38
  5. Step 5: Solve for x
    x = 10,266,419,769.38/117,194.51
  6. Step 6: Final answer
    x = 87,601.54

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1.5x scale

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.