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Finding the Fourth Proportional to 251,602.44, 347,203.45 and 136,878.15

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Solution

The fourth proportional to 251,602.44, 347,203.45 and 136,878.15 is: 188,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,602.44 : 347,203.45 = 136,878.15 : x
  2. Step 2: Convert to fraction form
    251,602.44/347,203.45 = 136,878.15/x
  3. Step 3: Cross multiply
    251,602.44x = 347,203.45 × 136,878.15
  4. Step 4: Simplify right side
    251,602.44x = 47,524,565,909.62
  5. Step 5: Solve for x
    x = 47,524,565,909.62/251,602.44
  6. Step 6: Final answer
    x = 188,887.54

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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.