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Finding the Fourth Proportional to 516,858.04, 775,324.02 and 137,776.84

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Solution

The fourth proportional to 516,858.04, 775,324.02 and 137,776.84 is: 206,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,858.04 : 775,324.02 = 137,776.84 : x
  2. Step 2: Convert to fraction form
    516,858.04/775,324.02 = 137,776.84/x
  3. Step 3: Cross multiply
    516,858.04x = 775,324.02 × 137,776.84
  4. Step 4: Simplify right side
    516,858.04x = 106,821,693,451.70
  5. Step 5: Solve for x
    x = 106,821,693,451.70/516,858.04
  6. Step 6: Final answer
    x = 206,675.11

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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.