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Finding the Fourth Proportional to 117,065.44, 161,548.98 and 63,349.48

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Solution

The fourth proportional to 117,065.44, 161,548.98 and 63,349.48 is: 87,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,065.44 : 161,548.98 = 63,349.48 : x
  2. Step 2: Convert to fraction form
    117,065.44/161,548.98 = 63,349.48/x
  3. Step 3: Cross multiply
    117,065.44x = 161,548.98 × 63,349.48
  4. Step 4: Simplify right side
    117,065.44x = 10,234,043,069.79
  5. Step 5: Solve for x
    x = 10,234,043,069.79/117,065.44
  6. Step 6: Final answer
    x = 87,421.56

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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.