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Finding the Fourth Proportional to 356,774.08, 535,172.64 and 132,190.96

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Solution

The fourth proportional to 356,774.08, 535,172.64 and 132,190.96 is: 198,290.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,774.08 : 535,172.64 = 132,190.96 : x
  2. Step 2: Convert to fraction form
    356,774.08/535,172.64 = 132,190.96/x
  3. Step 3: Cross multiply
    356,774.08x = 535,172.64 × 132,190.96
  4. Step 4: Simplify right side
    356,774.08x = 70,744,985,047.33
  5. Step 5: Solve for x
    x = 70,744,985,047.33/356,774.08
  6. Step 6: Final answer
    x = 198,290.71

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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.