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Finding the Fourth Proportional to 79,252.67, 118,886.34 and 28,664.35

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Solution

The fourth proportional to 79,252.67, 118,886.34 and 28,664.35 is: 42,999.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,252.67 : 118,886.34 = 28,664.35 : x
  2. Step 2: Convert to fraction form
    79,252.67/118,886.34 = 28,664.35/x
  3. Step 3: Cross multiply
    79,252.67x = 118,886.34 × 28,664.35
  4. Step 4: Simplify right side
    79,252.67x = 3,407,799,659.98
  5. Step 5: Solve for x
    x = 3,407,799,659.98/79,252.67
  6. Step 6: Final answer
    x = 42,999.18

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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.