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Finding the Fourth Proportional to 79,110.90, 109,173.08 and 43,301.10

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Solution

The fourth proportional to 79,110.90, 109,173.08 and 43,301.10 is: 59,755.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,110.90 : 109,173.08 = 43,301.10 : x
  2. Step 2: Convert to fraction form
    79,110.90/109,173.08 = 43,301.10/x
  3. Step 3: Cross multiply
    79,110.90x = 109,173.08 × 43,301.10
  4. Step 4: Simplify right side
    79,110.90x = 4,727,314,454.39
  5. Step 5: Solve for x
    x = 4,727,314,454.39/79,110.90
  6. Step 6: Final answer
    x = 59,755.54

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1.5x scale

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.