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Finding the Fourth Proportional to 74,464.59, 102,761.14 and 40,930.59

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Solution

The fourth proportional to 74,464.59, 102,761.14 and 40,930.59 is: 56,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,464.59 : 102,761.14 = 40,930.59 : x
  2. Step 2: Convert to fraction form
    74,464.59/102,761.14 = 40,930.59/x
  3. Step 3: Cross multiply
    74,464.59x = 102,761.14 × 40,930.59
  4. Step 4: Simplify right side
    74,464.59x = 4,206,074,449.05
  5. Step 5: Solve for x
    x = 4,206,074,449.05/74,464.59
  6. Step 6: Final answer
    x = 56,484.22

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1.5x scale

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.