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Finding the Fourth Proportional to 104,560.87, 144,294.60 and 56,814.61

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Solution

The fourth proportional to 104,560.87, 144,294.60 and 56,814.61 is: 78,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,560.87 : 144,294.60 = 56,814.61 : x
  2. Step 2: Convert to fraction form
    104,560.87/144,294.60 = 56,814.61/x
  3. Step 3: Cross multiply
    104,560.87x = 144,294.60 × 56,814.61
  4. Step 4: Simplify right side
    104,560.87x = 8,198,041,424.11
  5. Step 5: Solve for x
    x = 8,198,041,424.11/104,560.87
  6. Step 6: Final answer
    x = 78,404.49

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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.