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Finding the Fourth Proportional to 292,843.26, 439,266.20 and 143,095.32

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Solution

The fourth proportional to 292,843.26, 439,266.20 and 143,095.32 is: 214,643.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,843.26 : 439,266.20 = 143,095.32 : x
  2. Step 2: Convert to fraction form
    292,843.26/439,266.20 = 143,095.32/x
  3. Step 3: Cross multiply
    292,843.26x = 439,266.20 × 143,095.32
  4. Step 4: Simplify right side
    292,843.26x = 62,856,936,738.71
  5. Step 5: Solve for x
    x = 62,856,936,738.71/292,843.26
  6. Step 6: Final answer
    x = 214,643.62

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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.