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Finding the Fourth Proportional to 79,718.01, 110,018.63 and 59,539.88

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Solution

The fourth proportional to 79,718.01, 110,018.63 and 59,539.88 is: 82,170.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,718.01 : 110,018.63 = 59,539.88 : x
  2. Step 2: Convert to fraction form
    79,718.01/110,018.63 = 59,539.88/x
  3. Step 3: Cross multiply
    79,718.01x = 110,018.63 × 59,539.88
  4. Step 4: Simplify right side
    79,718.01x = 6,550,496,027.96
  5. Step 5: Solve for x
    x = 6,550,496,027.96/79,718.01
  6. Step 6: Final answer
    x = 82,170.84

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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.