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Finding the Fourth Proportional to 352,235.20, 528,644.40 and 162,986.80

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Solution

The fourth proportional to 352,235.20, 528,644.40 and 162,986.80 is: 244,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,235.20 : 528,644.40 = 162,986.80 : x
  2. Step 2: Convert to fraction form
    352,235.20/528,644.40 = 162,986.80/x
  3. Step 3: Cross multiply
    352,235.20x = 528,644.40 × 162,986.80
  4. Step 4: Simplify right side
    352,235.20x = 86,162,059,093.92
  5. Step 5: Solve for x
    x = 86,162,059,093.92/352,235.20
  6. Step 6: Final answer
    x = 244,615.13

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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.