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Finding the Fourth Proportional to 111,750.98, 154,216.34 and 61,449.98

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Solution

The fourth proportional to 111,750.98, 154,216.34 and 61,449.98 is: 84,800.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,750.98 : 154,216.34 = 61,449.98 : x
  2. Step 2: Convert to fraction form
    111,750.98/154,216.34 = 61,449.98/x
  3. Step 3: Cross multiply
    111,750.98x = 154,216.34 × 61,449.98
  4. Step 4: Simplify right side
    111,750.98x = 9,476,591,008.67
  5. Step 5: Solve for x
    x = 9,476,591,008.67/111,750.98
  6. Step 6: Final answer
    x = 84,800.97

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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.