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Finding the Fourth Proportional to 141,757.26, 212,569.20 and 52,987.20

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Solution

The fourth proportional to 141,757.26, 212,569.20 and 52,987.20 is: 79,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,757.26 : 212,569.20 = 52,987.20 : x
  2. Step 2: Convert to fraction form
    141,757.26/212,569.20 = 52,987.20/x
  3. Step 3: Cross multiply
    141,757.26x = 212,569.20 × 52,987.20
  4. Step 4: Simplify right side
    141,757.26x = 11,263,446,714.24
  5. Step 5: Solve for x
    x = 11,263,446,714.24/141,757.26
  6. Step 6: Final answer
    x = 79,455.87

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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.