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Finding the Fourth Proportional to 45,699.78, 68,524.55 and 14,101.22

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Solution

The fourth proportional to 45,699.78, 68,524.55 and 14,101.22 is: 21,144.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,699.78 : 68,524.55 = 14,101.22 : x
  2. Step 2: Convert to fraction form
    45,699.78/68,524.55 = 14,101.22/x
  3. Step 3: Cross multiply
    45,699.78x = 68,524.55 × 14,101.22
  4. Step 4: Simplify right side
    45,699.78x = 966,279,341.82
  5. Step 5: Solve for x
    x = 966,279,341.82/45,699.78
  6. Step 6: Final answer
    x = 21,144.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.