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Finding the Fourth Proportional to 125,649.48, 188,249.40 and 66,352.44

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Solution

The fourth proportional to 125,649.48, 188,249.40 and 66,352.44 is: 99,409.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,649.48 : 188,249.40 = 66,352.44 : x
  2. Step 2: Convert to fraction form
    125,649.48/188,249.40 = 66,352.44/x
  3. Step 3: Cross multiply
    125,649.48x = 188,249.40 × 66,352.44
  4. Step 4: Simplify right side
    125,649.48x = 12,490,807,018.54
  5. Step 5: Solve for x
    x = 12,490,807,018.54/125,649.48
  6. Step 6: Final answer
    x = 99,409.94

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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.