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Finding the Fourth Proportional to 436,169.59, 654,253.57 and 136,673.11

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Solution

The fourth proportional to 436,169.59, 654,253.57 and 136,673.11 is: 205,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,169.59 : 654,253.57 = 136,673.11 : x
  2. Step 2: Convert to fraction form
    436,169.59/654,253.57 = 136,673.11/x
  3. Step 3: Cross multiply
    436,169.59x = 654,253.57 × 136,673.11
  4. Step 4: Simplify right side
    436,169.59x = 89,418,870,140.50
  5. Step 5: Solve for x
    x = 89,418,870,140.50/436,169.59
  6. Step 6: Final answer
    x = 205,009.41

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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.