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Finding the Fourth Proportional to 75,953.59, 113,930.03 and 42,203.71

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Solution

The fourth proportional to 75,953.59, 113,930.03 and 42,203.71 is: 63,305.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,953.59 : 113,930.03 = 42,203.71 : x
  2. Step 2: Convert to fraction form
    75,953.59/113,930.03 = 42,203.71/x
  3. Step 3: Cross multiply
    75,953.59x = 113,930.03 × 42,203.71
  4. Step 4: Simplify right side
    75,953.59x = 4,808,269,735.39
  5. Step 5: Solve for x
    x = 4,808,269,735.39/75,953.59
  6. Step 6: Final answer
    x = 63,305.36

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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.