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Finding the Fourth Proportional to 117,076.47, 161,565.71 and 63,361.53

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Solution

The fourth proportional to 117,076.47, 161,565.71 and 63,361.53 is: 87,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,076.47 : 161,565.71 = 63,361.53 : x
  2. Step 2: Convert to fraction form
    117,076.47/161,565.71 = 63,361.53/x
  3. Step 3: Cross multiply
    117,076.47x = 161,565.71 × 63,361.53
  4. Step 4: Simplify right side
    117,076.47x = 10,237,050,581.14
  5. Step 5: Solve for x
    x = 10,237,050,581.14/117,076.47
  6. Step 6: Final answer
    x = 87,439.01

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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.