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Finding the Fourth Proportional to 516,828.57, 775,242.86 and 161,870.37

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Solution

The fourth proportional to 516,828.57, 775,242.86 and 161,870.37 is: 242,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,828.57 : 775,242.86 = 161,870.37 : x
  2. Step 2: Convert to fraction form
    516,828.57/775,242.86 = 161,870.37/x
  3. Step 3: Cross multiply
    516,828.57x = 775,242.86 × 161,870.37
  4. Step 4: Simplify right side
    516,828.57x = 125,488,848,588.06
  5. Step 5: Solve for x
    x = 125,488,848,588.06/516,828.57
  6. Step 6: Final answer
    x = 242,805.56

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Similar ratio
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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.