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Finding the Fourth Proportional to 133,655.20, 200,536.80 and 58,789.60

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Solution

The fourth proportional to 133,655.20, 200,536.80 and 58,789.60 is: 88,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,655.20 : 200,536.80 = 58,789.60 : x
  2. Step 2: Convert to fraction form
    133,655.20/200,536.80 = 58,789.60/x
  3. Step 3: Cross multiply
    133,655.20x = 200,536.80 × 58,789.60
  4. Step 4: Simplify right side
    133,655.20x = 11,789,478,257.28
  5. Step 5: Solve for x
    x = 11,789,478,257.28/133,655.20
  6. Step 6: Final answer
    x = 88,208.15

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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.