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Finding the Fourth Proportional to 73,053.77, 100,813.22 and 40,788.89

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Solution

The fourth proportional to 73,053.77, 100,813.22 and 40,788.89 is: 56,288.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,053.77 : 100,813.22 = 40,788.89 : x
  2. Step 2: Convert to fraction form
    73,053.77/100,813.22 = 40,788.89/x
  3. Step 3: Cross multiply
    73,053.77x = 100,813.22 × 40,788.89
  4. Step 4: Simplify right side
    73,053.77x = 4,112,059,677.10
  5. Step 5: Solve for x
    x = 4,112,059,677.10/73,053.77
  6. Step 6: Final answer
    x = 56,288.12

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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.