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Finding the Fourth Proportional to 104,398.50, 144,070.31 and 56,651.84

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Solution

The fourth proportional to 104,398.50, 144,070.31 and 56,651.84 is: 78,179.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,398.50 : 144,070.31 = 56,651.84 : x
  2. Step 2: Convert to fraction form
    104,398.50/144,070.31 = 56,651.84/x
  3. Step 3: Cross multiply
    104,398.50x = 144,070.31 × 56,651.84
  4. Step 4: Simplify right side
    104,398.50x = 8,161,848,150.87
  5. Step 5: Solve for x
    x = 8,161,848,150.87/104,398.50
  6. Step 6: Final answer
    x = 78,179.75

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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.