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Finding the Fourth Proportional to 75,712.58, 113,461.71 and 41,993.45

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Solution

The fourth proportional to 75,712.58, 113,461.71 and 41,993.45 is: 62,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712.58 : 113,461.71 = 41,993.45 : x
  2. Step 2: Convert to fraction form
    75,712.58/113,461.71 = 41,993.45/x
  3. Step 3: Cross multiply
    75,712.58x = 113,461.71 × 41,993.45
  4. Step 4: Simplify right side
    75,712.58x = 4,764,648,078.49
  5. Step 5: Solve for x
    x = 4,764,648,078.49/75,712.58
  6. Step 6: Final answer
    x = 62,930.74

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1.5x scale

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.