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Finding the Fourth Proportional to 141,752.66, 212,760.75 and 71,682.26

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Solution

The fourth proportional to 141,752.66, 212,760.75 and 71,682.26 is: 107,590.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,752.66 : 212,760.75 = 71,682.26 : x
  2. Step 2: Convert to fraction form
    141,752.66/212,760.75 = 71,682.26/x
  3. Step 3: Cross multiply
    141,752.66x = 212,760.75 × 71,682.26
  4. Step 4: Simplify right side
    141,752.66x = 15,251,171,399.30
  5. Step 5: Solve for x
    x = 15,251,171,399.30/141,752.66
  6. Step 6: Final answer
    x = 107,590.02

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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.