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Finding the Fourth Proportional to 79,866.43, 119,697.87 and 42,444.43

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Solution

The fourth proportional to 79,866.43, 119,697.87 and 42,444.43 is: 63,612.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,866.43 : 119,697.87 = 42,444.43 : x
  2. Step 2: Convert to fraction form
    79,866.43/119,697.87 = 42,444.43/x
  3. Step 3: Cross multiply
    79,866.43x = 119,697.87 × 42,444.43
  4. Step 4: Simplify right side
    79,866.43x = 5,080,507,864.36
  5. Step 5: Solve for x
    x = 5,080,507,864.36/79,866.43
  6. Step 6: Final answer
    x = 63,612.56

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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.