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Finding the Fourth Proportional to 73,066.70, 109,729.65 and 56,467.10

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Solution

The fourth proportional to 73,066.70, 109,729.65 and 56,467.10 is: 84,800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,066.70 : 109,729.65 = 56,467.10 : x
  2. Step 2: Convert to fraction form
    73,066.70/109,729.65 = 56,467.10/x
  3. Step 3: Cross multiply
    73,066.70x = 109,729.65 × 56,467.10
  4. Step 4: Simplify right side
    73,066.70x = 6,196,115,119.52
  5. Step 5: Solve for x
    x = 6,196,115,119.52/73,066.70
  6. Step 6: Final answer
    x = 84,800.81

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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.