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Finding the Fourth Proportional to 73,390.43, 110,129.38 and 26,646.95

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Solution

The fourth proportional to 73,390.43, 110,129.38 and 26,646.95 is: 39,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,390.43 : 110,129.38 = 26,646.95 : x
  2. Step 2: Convert to fraction form
    73,390.43/110,129.38 = 26,646.95/x
  3. Step 3: Cross multiply
    73,390.43x = 110,129.38 × 26,646.95
  4. Step 4: Simplify right side
    73,390.43x = 2,934,611,531.74
  5. Step 5: Solve for x
    x = 2,934,611,531.74/73,390.43
  6. Step 6: Final answer
    x = 39,986.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.