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Finding the Fourth Proportional to 104,110.43, 143,672.43 and 56,363.78

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Solution

The fourth proportional to 104,110.43, 143,672.43 and 56,363.78 is: 77,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,110.43 : 143,672.43 = 56,363.78 : x
  2. Step 2: Convert to fraction form
    104,110.43/143,672.43 = 56,363.78/x
  3. Step 3: Cross multiply
    104,110.43x = 143,672.43 × 56,363.78
  4. Step 4: Simplify right side
    104,110.43x = 8,097,920,518.22
  5. Step 5: Solve for x
    x = 8,097,920,518.22/104,110.43
  6. Step 6: Final answer
    x = 77,782.03

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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.