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Finding the Fourth Proportional to 141,758.92, 212,644.32 and 53,003.44

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Solution

The fourth proportional to 141,758.92, 212,644.32 and 53,003.44 is: 79,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,758.92 : 212,644.32 = 53,003.44 : x
  2. Step 2: Convert to fraction form
    141,758.92/212,644.32 = 53,003.44/x
  3. Step 3: Cross multiply
    141,758.92x = 212,644.32 × 53,003.44
  4. Step 4: Simplify right side
    141,758.92x = 11,270,880,456.46
  5. Step 5: Solve for x
    x = 11,270,880,456.46/141,758.92
  6. Step 6: Final answer
    x = 79,507.38

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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.