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Finding the Fourth Proportional to 108,883.56, 150,255.43 and 61,138.92

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Solution

The fourth proportional to 108,883.56, 150,255.43 and 61,138.92 is: 84,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,883.56 : 150,255.43 = 61,138.92 : x
  2. Step 2: Convert to fraction form
    108,883.56/150,255.43 = 61,138.92/x
  3. Step 3: Cross multiply
    108,883.56x = 150,255.43 × 61,138.92
  4. Step 4: Simplify right side
    108,883.56x = 9,186,454,561.49
  5. Step 5: Solve for x
    x = 9,186,454,561.49/108,883.56
  6. Step 6: Final answer
    x = 84,369.53

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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.