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Finding the Fourth Proportional to 75,187.94, 103,764.29 and 43,358.88

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Solution

The fourth proportional to 75,187.94, 103,764.29 and 43,358.88 is: 59,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,187.94 : 103,764.29 = 43,358.88 : x
  2. Step 2: Convert to fraction form
    75,187.94/103,764.29 = 43,358.88/x
  3. Step 3: Cross multiply
    75,187.94x = 103,764.29 × 43,358.88
  4. Step 4: Simplify right side
    75,187.94x = 4,499,103,181.60
  5. Step 5: Solve for x
    x = 4,499,103,181.60/75,187.94
  6. Step 6: Final answer
    x = 59,838.10

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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.