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Finding the Fourth Proportional to 120,833.71, 166,743.35 and 67,117.39

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Solution

The fourth proportional to 120,833.71, 166,743.35 and 67,117.39 is: 92,618.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,833.71 : 166,743.35 = 67,117.39 : x
  2. Step 2: Convert to fraction form
    120,833.71/166,743.35 = 67,117.39/x
  3. Step 3: Cross multiply
    120,833.71x = 166,743.35 × 67,117.39
  4. Step 4: Simplify right side
    120,833.71x = 11,191,378,116.27
  5. Step 5: Solve for x
    x = 11,191,378,116.27/120,833.71
  6. Step 6: Final answer
    x = 92,618.01

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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.