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Finding the Fourth Proportional to 104,377.65, 144,040.51 and 56,629.97

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Solution

The fourth proportional to 104,377.65, 144,040.51 and 56,629.97 is: 78,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,377.65 : 144,040.51 = 56,629.97 : x
  2. Step 2: Convert to fraction form
    104,377.65/144,040.51 = 56,629.97/x
  3. Step 3: Cross multiply
    104,377.65x = 144,040.51 × 56,629.97
  4. Step 4: Simplify right side
    104,377.65x = 8,157,009,650.82
  5. Step 5: Solve for x
    x = 8,157,009,650.82/104,377.65
  6. Step 6: Final answer
    x = 78,149.01

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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.