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Finding the Fourth Proportional to 73,818.43, 110,750.94 and 56,133.79

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Solution

The fourth proportional to 73,818.43, 110,750.94 and 56,133.79 is: 84,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,818.43 : 110,750.94 = 56,133.79 : x
  2. Step 2: Convert to fraction form
    73,818.43/110,750.94 = 56,133.79/x
  3. Step 3: Cross multiply
    73,818.43x = 110,750.94 × 56,133.79
  4. Step 4: Simplify right side
    73,818.43x = 6,216,869,731.39
  5. Step 5: Solve for x
    x = 6,216,869,731.39/73,818.43
  6. Step 6: Final answer
    x = 84,218.40

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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.