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Finding the Fourth Proportional to 331,356.20, 497,099.10 and 141,816.20

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Solution

The fourth proportional to 331,356.20, 497,099.10 and 141,816.20 is: 212,752.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,356.20 : 497,099.10 = 141,816.20 : x
  2. Step 2: Convert to fraction form
    331,356.20/497,099.10 = 141,816.20/x
  3. Step 3: Cross multiply
    331,356.20x = 497,099.10 × 141,816.20
  4. Step 4: Simplify right side
    331,356.20x = 70,496,705,385.42
  5. Step 5: Solve for x
    x = 70,496,705,385.42/331,356.20
  6. Step 6: Final answer
    x = 212,752.03

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1.5x scale

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.