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Finding the Fourth Proportional to 316,272.26, 436,448.22 and 173,033.48

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Solution

The fourth proportional to 316,272.26, 436,448.22 and 173,033.48 is: 238,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,272.26 : 436,448.22 = 173,033.48 : x
  2. Step 2: Convert to fraction form
    316,272.26/436,448.22 = 173,033.48/x
  3. Step 3: Cross multiply
    316,272.26x = 436,448.22 × 173,033.48
  4. Step 4: Simplify right side
    316,272.26x = 75,520,152,164.16
  5. Step 5: Solve for x
    x = 75,520,152,164.16/316,272.26
  6. Step 6: Final answer
    x = 238,782.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.