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Finding the Fourth Proportional to 61,119.50, 84,318.18 and 43,229.84

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Solution

The fourth proportional to 61,119.50, 84,318.18 and 43,229.84 is: 59,638.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,119.50 : 84,318.18 = 43,229.84 : x
  2. Step 2: Convert to fraction form
    61,119.50/84,318.18 = 43,229.84/x
  3. Step 3: Cross multiply
    61,119.50x = 84,318.18 × 43,229.84
  4. Step 4: Simplify right side
    61,119.50x = 3,645,061,430.49
  5. Step 5: Solve for x
    x = 3,645,061,430.49/61,119.50
  6. Step 6: Final answer
    x = 59,638.27

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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.