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Finding the Fourth Proportional to 56,604.60, 84,906.90 and 51,161.40

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Solution

The fourth proportional to 56,604.60, 84,906.90 and 51,161.40 is: 76,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,604.60 : 84,906.90 = 51,161.40 : x
  2. Step 2: Convert to fraction form
    56,604.60/84,906.90 = 51,161.40/x
  3. Step 3: Cross multiply
    56,604.60x = 84,906.90 × 51,161.40
  4. Step 4: Simplify right side
    56,604.60x = 4,343,955,873.66
  5. Step 5: Solve for x
    x = 4,343,955,873.66/56,604.60
  6. Step 6: Final answer
    x = 76,742.10

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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.