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Finding the Fourth Proportional to 84,589.52, 126,799.80 and 56,533.20

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Solution

The fourth proportional to 84,589.52, 126,799.80 and 56,533.20 is: 84,743.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,589.52 : 126,799.80 = 56,533.20 : x
  2. Step 2: Convert to fraction form
    84,589.52/126,799.80 = 56,533.20/x
  3. Step 3: Cross multiply
    84,589.52x = 126,799.80 × 56,533.20
  4. Step 4: Simplify right side
    84,589.52x = 7,168,398,453.36
  5. Step 5: Solve for x
    x = 7,168,398,453.36/84,589.52
  6. Step 6: Final answer
    x = 84,743.34

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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.