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Finding the Fourth Proportional to 73,159.56, 100,959.94 and 39,625.64

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Solution

The fourth proportional to 73,159.56, 100,959.94 and 39,625.64 is: 54,683.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,159.56 : 100,959.94 = 39,625.64 : x
  2. Step 2: Convert to fraction form
    73,159.56/100,959.94 = 39,625.64/x
  3. Step 3: Cross multiply
    73,159.56x = 100,959.94 × 39,625.64
  4. Step 4: Simplify right side
    73,159.56x = 4,000,602,236.86
  5. Step 5: Solve for x
    x = 4,000,602,236.86/73,159.56
  6. Step 6: Final answer
    x = 54,683.25

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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.