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Finding the Fourth Proportional to 104,709.74, 144,498.74 and 56,963.27

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Solution

The fourth proportional to 104,709.74, 144,498.74 and 56,963.27 is: 78,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,709.74 : 144,498.74 = 56,963.27 : x
  2. Step 2: Convert to fraction form
    104,709.74/144,498.74 = 56,963.27/x
  3. Step 3: Cross multiply
    104,709.74x = 144,498.74 × 56,963.27
  4. Step 4: Simplify right side
    104,709.74x = 8,231,119,733.97
  5. Step 5: Solve for x
    x = 8,231,119,733.97/104,709.74
  6. Step 6: Final answer
    x = 78,608.93

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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.