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Finding the Fourth Proportional to 379,244.60, 568,763.22 and 142,569.08

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Solution

The fourth proportional to 379,244.60, 568,763.22 and 142,569.08 is: 213,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,244.60 : 568,763.22 = 142,569.08 : x
  2. Step 2: Convert to fraction form
    379,244.60/568,763.22 = 142,569.08/x
  3. Step 3: Cross multiply
    379,244.60x = 568,763.22 × 142,569.08
  4. Step 4: Simplify right side
    379,244.60x = 81,088,049,013.24
  5. Step 5: Solve for x
    x = 81,088,049,013.24/379,244.60
  6. Step 6: Final answer
    x = 213,814.64

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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.