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Finding the Fourth Proportional to 104,077.88, 143,630.97 and 63,783.87

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Solution

The fourth proportional to 104,077.88, 143,630.97 and 63,783.87 is: 88,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,077.88 : 143,630.97 = 63,783.87 : x
  2. Step 2: Convert to fraction form
    104,077.88/143,630.97 = 63,783.87/x
  3. Step 3: Cross multiply
    104,077.88x = 143,630.97 × 63,783.87
  4. Step 4: Simplify right side
    104,077.88x = 9,161,339,118.45
  5. Step 5: Solve for x
    x = 9,161,339,118.45/104,077.88
  6. Step 6: Final answer
    x = 88,023.89

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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.