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Finding the Fourth Proportional to 191,370.87, 264,085.11 and 105,329.43

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Solution

The fourth proportional to 191,370.87, 264,085.11 and 105,329.43 is: 145,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,370.87 : 264,085.11 = 105,329.43 : x
  2. Step 2: Convert to fraction form
    191,370.87/264,085.11 = 105,329.43/x
  3. Step 3: Cross multiply
    191,370.87x = 264,085.11 × 105,329.43
  4. Step 4: Simplify right side
    191,370.87x = 27,815,934,107.79
  5. Step 5: Solve for x
    x = 27,815,934,107.79/191,370.87
  6. Step 6: Final answer
    x = 145,350.93

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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.