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Finding the Fourth Proportional to 355,692.47, 533,722.77 and 156,153.02

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Solution

The fourth proportional to 355,692.47, 533,722.77 and 156,153.02 is: 234,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,692.47 : 533,722.77 = 156,153.02 : x
  2. Step 2: Convert to fraction form
    355,692.47/533,722.77 = 156,153.02/x
  3. Step 3: Cross multiply
    355,692.47x = 533,722.77 × 156,153.02
  4. Step 4: Simplify right side
    355,692.47x = 83,342,419,709.65
  5. Step 5: Solve for x
    x = 83,342,419,709.65/355,692.47
  6. Step 6: Final answer
    x = 234,310.33

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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.