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Finding the Fourth Proportional to 117,154.46, 161,672.87 and 63,439.48

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Solution

The fourth proportional to 117,154.46, 161,672.87 and 63,439.48 is: 87,546.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,154.46 : 161,672.87 = 63,439.48 : x
  2. Step 2: Convert to fraction form
    117,154.46/161,672.87 = 63,439.48/x
  3. Step 3: Cross multiply
    117,154.46x = 161,672.87 × 63,439.48
  4. Step 4: Simplify right side
    117,154.46x = 10,256,441,897.34
  5. Step 5: Solve for x
    x = 10,256,441,897.34/117,154.46
  6. Step 6: Final answer
    x = 87,546.32

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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.