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Finding the Fourth Proportional to 75,418, 104,086.02 and 43,587.16

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Solution

The fourth proportional to 75,418, 104,086.02 and 43,587.16 is: 60,155.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,418 : 104,086.02 = 43,587.16 : x
  2. Step 2: Convert to fraction form
    75,418/104,086.02 = 43,587.16/x
  3. Step 3: Cross multiply
    75,418x = 104,086.02 × 43,587.16
  4. Step 4: Simplify right side
    75,418x = 4,536,814,007.50
  5. Step 5: Solve for x
    x = 4,536,814,007.50/75,418
  6. Step 6: Final answer
    x = 60,155.59

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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.