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Finding the Fourth Proportional to 331,392.20, 497,153.10 and 141,852.20

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Solution

The fourth proportional to 331,392.20, 497,153.10 and 141,852.20 is: 212,806.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,392.20 : 497,153.10 = 141,852.20 : x
  2. Step 2: Convert to fraction form
    331,392.20/497,153.10 = 141,852.20/x
  3. Step 3: Cross multiply
    331,392.20x = 497,153.10 × 141,852.20
  4. Step 4: Simplify right side
    331,392.20x = 70,522,260,971.82
  5. Step 5: Solve for x
    x = 70,522,260,971.82/331,392.20
  6. Step 6: Final answer
    x = 212,806.04

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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.