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Finding the Fourth Proportional to 104,770.86, 144,753.21 and 73,081.32

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Solution

The fourth proportional to 104,770.86, 144,753.21 and 73,081.32 is: 100,970.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,770.86 : 144,753.21 = 73,081.32 : x
  2. Step 2: Convert to fraction form
    104,770.86/144,753.21 = 73,081.32/x
  3. Step 3: Cross multiply
    104,770.86x = 144,753.21 × 73,081.32
  4. Step 4: Simplify right side
    104,770.86x = 10,578,755,661.04
  5. Step 5: Solve for x
    x = 10,578,755,661.04/104,770.86
  6. Step 6: Final answer
    x = 100,970.40

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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.