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Finding the Fourth Proportional to 117,203.94, 161,741.61 and 63,489.42

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Solution

The fourth proportional to 117,203.94, 161,741.61 and 63,489.42 is: 87,615.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,203.94 : 161,741.61 = 63,489.42 : x
  2. Step 2: Convert to fraction form
    117,203.94/161,741.61 = 63,489.42/x
  3. Step 3: Cross multiply
    117,203.94x = 161,741.61 × 63,489.42
  4. Step 4: Simplify right side
    117,203.94x = 10,268,881,008.77
  5. Step 5: Solve for x
    x = 10,268,881,008.77/117,203.94
  6. Step 6: Final answer
    x = 87,615.49

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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.