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Finding the Fourth Proportional to 79,186.92, 109,276.98 and 43,376.52

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Solution

The fourth proportional to 79,186.92, 109,276.98 and 43,376.52 is: 59,859.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,186.92 : 109,276.98 = 43,376.52 : x
  2. Step 2: Convert to fraction form
    79,186.92/109,276.98 = 43,376.52/x
  3. Step 3: Cross multiply
    79,186.92x = 109,276.98 × 43,376.52
  4. Step 4: Simplify right side
    79,186.92x = 4,740,055,108.51
  5. Step 5: Solve for x
    x = 4,740,055,108.51/79,186.92
  6. Step 6: Final answer
    x = 59,859.07

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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.