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Finding the Fourth Proportional to 101,849.45, 140,550.12 and 56,524.77

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Solution

The fourth proportional to 101,849.45, 140,550.12 and 56,524.77 is: 78,003.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,849.45 : 140,550.12 = 56,524.77 : x
  2. Step 2: Convert to fraction form
    101,849.45/140,550.12 = 56,524.77/x
  3. Step 3: Cross multiply
    101,849.45x = 140,550.12 × 56,524.77
  4. Step 4: Simplify right side
    101,849.45x = 7,944,563,206.47
  5. Step 5: Solve for x
    x = 7,944,563,206.47/101,849.45
  6. Step 6: Final answer
    x = 78,003.01

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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.