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Finding the Fourth Proportional to 119,561.52, 179,249.32 and 77,352.42

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Solution

The fourth proportional to 119,561.52, 179,249.32 and 77,352.42 is: 115,968.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,561.52 : 179,249.32 = 77,352.42 : x
  2. Step 2: Convert to fraction form
    119,561.52/179,249.32 = 77,352.42/x
  3. Step 3: Cross multiply
    119,561.52x = 179,249.32 × 77,352.42
  4. Step 4: Simplify right side
    119,561.52x = 13,865,368,298.59
  5. Step 5: Solve for x
    x = 13,865,368,298.59/119,561.52
  6. Step 6: Final answer
    x = 115,968.48

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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.