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Finding the Fourth Proportional to 133,074.01, 199,669.47 and 69,879.43

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Solution

The fourth proportional to 133,074.01, 199,669.47 and 69,879.43 is: 104,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,074.01 : 199,669.47 = 69,879.43 : x
  2. Step 2: Convert to fraction form
    133,074.01/199,669.47 = 69,879.43/x
  3. Step 3: Cross multiply
    133,074.01x = 199,669.47 × 69,879.43
  4. Step 4: Simplify right side
    133,074.01x = 13,952,788,752.00
  5. Step 5: Solve for x
    x = 13,952,788,752.00/133,074.01
  6. Step 6: Final answer
    x = 104,849.84

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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.