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Finding the Fourth Proportional to 61,019.10, 91,350.45 and 43,523.10

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Solution

The fourth proportional to 61,019.10, 91,350.45 and 43,523.10 is: 65,157.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,019.10 : 91,350.45 = 43,523.10 : x
  2. Step 2: Convert to fraction form
    61,019.10/91,350.45 = 43,523.10/x
  3. Step 3: Cross multiply
    61,019.10x = 91,350.45 × 43,523.10
  4. Step 4: Simplify right side
    61,019.10x = 3,975,854,770.40
  5. Step 5: Solve for x
    x = 3,975,854,770.40/61,019.10
  6. Step 6: Final answer
    x = 65,157.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.