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Finding the Fourth Proportional to 117,219.44, 161,762.63 and 63,505.82

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Solution

The fourth proportional to 117,219.44, 161,762.63 and 63,505.82 is: 87,637.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,219.44 : 161,762.63 = 63,505.82 : x
  2. Step 2: Convert to fraction form
    117,219.44/161,762.63 = 63,505.82/x
  3. Step 3: Cross multiply
    117,219.44x = 161,762.63 × 63,505.82
  4. Step 4: Simplify right side
    117,219.44x = 10,272,867,337.16
  5. Step 5: Solve for x
    x = 10,272,867,337.16/117,219.44
  6. Step 6: Final answer
    x = 87,637.92

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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.