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Finding the Fourth Proportional to 104,467.14, 144,165.69 and 56,720.88

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Solution

The fourth proportional to 104,467.14, 144,165.69 and 56,720.88 is: 78,275.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,467.14 : 144,165.69 = 56,720.88 : x
  2. Step 2: Convert to fraction form
    104,467.14/144,165.69 = 56,720.88/x
  3. Step 3: Cross multiply
    104,467.14x = 144,165.69 × 56,720.88
  4. Step 4: Simplify right side
    104,467.14x = 8,177,204,802.61
  5. Step 5: Solve for x
    x = 8,177,204,802.61/104,467.14
  6. Step 6: Final answer
    x = 78,275.38

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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.