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Finding the Fourth Proportional to 191,449.19, 264,195.25 and 119,868.68

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Solution

The fourth proportional to 191,449.19, 264,195.25 and 119,868.68 is: 165,415.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,449.19 : 264,195.25 = 119,868.68 : x
  2. Step 2: Convert to fraction form
    191,449.19/264,195.25 = 119,868.68/x
  3. Step 3: Cross multiply
    191,449.19x = 264,195.25 × 119,868.68
  4. Step 4: Simplify right side
    191,449.19x = 31,668,734,259.12
  5. Step 5: Solve for x
    x = 31,668,734,259.12/191,449.19
  6. Step 6: Final answer
    x = 165,415.87

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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.