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Finding the Fourth Proportional to 356,855.35, 535,255.21 and 132,110.05

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Solution

The fourth proportional to 356,855.35, 535,255.21 and 132,110.05 is: 198,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,855.35 : 535,255.21 = 132,110.05 : x
  2. Step 2: Convert to fraction form
    356,855.35/535,255.21 = 132,110.05/x
  3. Step 3: Cross multiply
    356,855.35x = 535,255.21 × 132,110.05
  4. Step 4: Simplify right side
    356,855.35x = 70,712,592,555.86
  5. Step 5: Solve for x
    x = 70,712,592,555.86/356,855.35
  6. Step 6: Final answer
    x = 198,154.78

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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.