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Finding the Fourth Proportional to 243,222.52, 335,655.22 and 135,793.80

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Solution

The fourth proportional to 243,222.52, 335,655.22 and 135,793.80 is: 187,399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,222.52 : 335,655.22 = 135,793.80 : x
  2. Step 2: Convert to fraction form
    243,222.52/335,655.22 = 135,793.80/x
  3. Step 3: Cross multiply
    243,222.52x = 335,655.22 × 135,793.80
  4. Step 4: Simplify right side
    243,222.52x = 45,579,897,813.64
  5. Step 5: Solve for x
    x = 45,579,897,813.64/243,222.52
  6. Step 6: Final answer
    x = 187,399.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.