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Finding the Fourth Proportional to 117,268.51, 161,831.12 and 63,553.52

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Solution

The fourth proportional to 117,268.51, 161,831.12 and 63,553.52 is: 87,704.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,268.51 : 161,831.12 = 63,553.52 : x
  2. Step 2: Convert to fraction form
    117,268.51/161,831.12 = 63,553.52/x
  3. Step 3: Cross multiply
    117,268.51x = 161,831.12 × 63,553.52
  4. Step 4: Simplify right side
    117,268.51x = 10,284,938,069.27
  5. Step 5: Solve for x
    x = 10,284,938,069.27/117,268.51
  6. Step 6: Final answer
    x = 87,704.18

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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.