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Finding the Fourth Proportional to 141,644.80, 212,467.20 and 133,334.20

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Solution

The fourth proportional to 141,644.80, 212,467.20 and 133,334.20 is: 200,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,644.80 : 212,467.20 = 133,334.20 : x
  2. Step 2: Convert to fraction form
    141,644.80/212,467.20 = 133,334.20/x
  3. Step 3: Cross multiply
    141,644.80x = 212,467.20 × 133,334.20
  4. Step 4: Simplify right side
    141,644.80x = 28,329,144,138.24
  5. Step 5: Solve for x
    x = 28,329,144,138.24/141,644.80
  6. Step 6: Final answer
    x = 200,001.30

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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.