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Finding the Fourth Proportional to 168,669.76, 253,087.11 and 73,887.01

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Solution

The fourth proportional to 168,669.76, 253,087.11 and 73,887.01 is: 110,866.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,669.76 : 253,087.11 = 73,887.01 : x
  2. Step 2: Convert to fraction form
    168,669.76/253,087.11 = 73,887.01/x
  3. Step 3: Cross multiply
    168,669.76x = 253,087.11 × 73,887.01
  4. Step 4: Simplify right side
    168,669.76x = 18,699,849,827.44
  5. Step 5: Solve for x
    x = 18,699,849,827.44/168,669.76
  6. Step 6: Final answer
    x = 110,866.64

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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.