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Finding the Fourth Proportional to 117,076.58, 161,565.64 and 63,361.59

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Solution

The fourth proportional to 117,076.58, 161,565.64 and 63,361.59 is: 87,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,076.58 : 161,565.64 = 63,361.59 : x
  2. Step 2: Convert to fraction form
    117,076.58/161,565.64 = 63,361.59/x
  3. Step 3: Cross multiply
    117,076.58x = 161,565.64 × 63,361.59
  4. Step 4: Simplify right side
    117,076.58x = 10,237,055,839.77
  5. Step 5: Solve for x
    x = 10,237,055,839.77/117,076.58
  6. Step 6: Final answer
    x = 87,438.97

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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.