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Finding the Fourth Proportional to 104,394.70, 144,067.47 and 56,648.08

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Solution

The fourth proportional to 104,394.70, 144,067.47 and 56,648.08 is: 78,175.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,394.70 : 144,067.47 = 56,648.08 : x
  2. Step 2: Convert to fraction form
    104,394.70/144,067.47 = 56,648.08/x
  3. Step 3: Cross multiply
    104,394.70x = 144,067.47 × 56,648.08
  4. Step 4: Simplify right side
    104,394.70x = 8,161,145,852.26
  5. Step 5: Solve for x
    x = 8,161,145,852.26/104,394.70
  6. Step 6: Final answer
    x = 78,175.87

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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.