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Finding the Fourth Proportional to 236,354.22, 354,531.15 and 70,142.22

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Solution

The fourth proportional to 236,354.22, 354,531.15 and 70,142.22 is: 105,213.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,354.22 : 354,531.15 = 70,142.22 : x
  2. Step 2: Convert to fraction form
    236,354.22/354,531.15 = 70,142.22/x
  3. Step 3: Cross multiply
    236,354.22x = 354,531.15 × 70,142.22
  4. Step 4: Simplify right side
    236,354.22x = 24,867,601,920.15
  5. Step 5: Solve for x
    x = 24,867,601,920.15/236,354.22
  6. Step 6: Final answer
    x = 105,213.28

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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.