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Finding the Fourth Proportional to 129,784.26, 179,102.26 and 70,168.26

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Solution

The fourth proportional to 129,784.26, 179,102.26 and 70,168.26 is: 96,832.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,784.26 : 179,102.26 = 70,168.26 : x
  2. Step 2: Convert to fraction form
    129,784.26/179,102.26 = 70,168.26/x
  3. Step 3: Cross multiply
    129,784.26x = 179,102.26 × 70,168.26
  4. Step 4: Simplify right side
    129,784.26x = 12,567,293,946.27
  5. Step 5: Solve for x
    x = 12,567,293,946.27/129,784.26
  6. Step 6: Final answer
    x = 96,832.19

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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.