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Finding the Fourth Proportional to 117,055.56, 161,535.52 and 63,339.44

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Solution

The fourth proportional to 117,055.56, 161,535.52 and 63,339.44 is: 87,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,055.56 : 161,535.52 = 63,339.44 : x
  2. Step 2: Convert to fraction form
    117,055.56/161,535.52 = 63,339.44/x
  3. Step 3: Cross multiply
    117,055.56x = 161,535.52 × 63,339.44
  4. Step 4: Simplify right side
    117,055.56x = 10,231,569,376.91
  5. Step 5: Solve for x
    x = 10,231,569,376.91/117,055.56
  6. Step 6: Final answer
    x = 87,407.80

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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.