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Finding the Fourth Proportional to 108,911.77, 150,306.24 and 61,167.94

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Solution

The fourth proportional to 108,911.77, 150,306.24 and 61,167.94 is: 84,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,911.77 : 150,306.24 = 61,167.94 : x
  2. Step 2: Convert to fraction form
    108,911.77/150,306.24 = 61,167.94/x
  3. Step 3: Cross multiply
    108,911.77x = 150,306.24 × 61,167.94
  4. Step 4: Simplify right side
    108,911.77x = 9,193,923,069.95
  5. Step 5: Solve for x
    x = 9,193,923,069.95/108,911.77
  6. Step 6: Final answer
    x = 84,416.25

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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.