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Finding the Fourth Proportional to 79,718.92, 110,011.97 and 43,911.35

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Solution

The fourth proportional to 79,718.92, 110,011.97 and 43,911.35 is: 60,597.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,718.92 : 110,011.97 = 43,911.35 : x
  2. Step 2: Convert to fraction form
    79,718.92/110,011.97 = 43,911.35/x
  3. Step 3: Cross multiply
    79,718.92x = 110,011.97 × 43,911.35
  4. Step 4: Simplify right side
    79,718.92x = 4,830,774,091.12
  5. Step 5: Solve for x
    x = 4,830,774,091.12/79,718.92
  6. Step 6: Final answer
    x = 60,597.59

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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.