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Finding the Fourth Proportional to 104,559.87, 144,293.22 and 56,813.61

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Solution

The fourth proportional to 104,559.87, 144,293.22 and 56,813.61 is: 78,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,559.87 : 144,293.22 = 56,813.61 : x
  2. Step 2: Convert to fraction form
    104,559.87/144,293.22 = 56,813.61/x
  3. Step 3: Cross multiply
    104,559.87x = 144,293.22 × 56,813.61
  4. Step 4: Simplify right side
    104,559.87x = 8,197,818,726.72
  5. Step 5: Solve for x
    x = 8,197,818,726.72/104,559.87
  6. Step 6: Final answer
    x = 78,403.11

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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.