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Finding the Fourth Proportional to 237,655.20, 356,536.80 and 79,899.60

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Solution

The fourth proportional to 237,655.20, 356,536.80 and 79,899.60 is: 119,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,655.20 : 356,536.80 = 79,899.60 : x
  2. Step 2: Convert to fraction form
    237,655.20/356,536.80 = 79,899.60/x
  3. Step 3: Cross multiply
    237,655.20x = 356,536.80 × 79,899.60
  4. Step 4: Simplify right side
    237,655.20x = 28,487,147,705.28
  5. Step 5: Solve for x
    x = 28,487,147,705.28/237,655.20
  6. Step 6: Final answer
    x = 119,867.55

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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.