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Finding the Fourth Proportional to 79,157.93, 109,234.66 and 43,347.32

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Solution

The fourth proportional to 79,157.93, 109,234.66 and 43,347.32 is: 59,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,157.93 : 109,234.66 = 43,347.32 : x
  2. Step 2: Convert to fraction form
    79,157.93/109,234.66 = 43,347.32/x
  3. Step 3: Cross multiply
    79,157.93x = 109,234.66 × 43,347.32
  4. Step 4: Simplify right side
    79,157.93x = 4,735,030,035.20
  5. Step 5: Solve for x
    x = 4,735,030,035.20/79,157.93
  6. Step 6: Final answer
    x = 59,817.51

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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.