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Finding the Fourth Proportional to 235,046.70, 352,570.05 and 209,458.80

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Solution

The fourth proportional to 235,046.70, 352,570.05 and 209,458.80 is: 314,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,046.70 : 352,570.05 = 209,458.80 : x
  2. Step 2: Convert to fraction form
    235,046.70/352,570.05 = 209,458.80/x
  3. Step 3: Cross multiply
    235,046.70x = 352,570.05 × 209,458.80
  4. Step 4: Simplify right side
    235,046.70x = 73,848,899,588.94
  5. Step 5: Solve for x
    x = 73,848,899,588.94/235,046.70
  6. Step 6: Final answer
    x = 314,188.20

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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.