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Finding the Fourth Proportional to 191,169.40, 263,809.43 and 103,952.60

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Solution

The fourth proportional to 191,169.40, 263,809.43 and 103,952.60 is: 143,452.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,169.40 : 263,809.43 = 103,952.60 : x
  2. Step 2: Convert to fraction form
    191,169.40/263,809.43 = 103,952.60/x
  3. Step 3: Cross multiply
    191,169.40x = 263,809.43 × 103,952.60
  4. Step 4: Simplify right side
    191,169.40x = 27,423,676,153.02
  5. Step 5: Solve for x
    x = 27,423,676,153.02/191,169.40
  6. Step 6: Final answer
    x = 143,452.23

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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.