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Finding the Fourth Proportional to 352,237.60, 527,578.80 and 211,751.20

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Solution

The fourth proportional to 352,237.60, 527,578.80 and 211,751.20 is: 317,159.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,237.60 : 527,578.80 = 211,751.20 : x
  2. Step 2: Convert to fraction form
    352,237.60/527,578.80 = 211,751.20/x
  3. Step 3: Cross multiply
    352,237.60x = 527,578.80 × 211,751.20
  4. Step 4: Simplify right side
    352,237.60x = 111,715,443,994.56
  5. Step 5: Solve for x
    x = 111,715,443,994.56/352,237.60
  6. Step 6: Final answer
    x = 317,159.34

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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.