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Finding the Fourth Proportional to 110,912.98, 153,065.42 and 65,617.46

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Solution

The fourth proportional to 110,912.98, 153,065.42 and 65,617.46 is: 90,555.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,912.98 : 153,065.42 = 65,617.46 : x
  2. Step 2: Convert to fraction form
    110,912.98/153,065.42 = 65,617.46/x
  3. Step 3: Cross multiply
    110,912.98x = 153,065.42 × 65,617.46
  4. Step 4: Simplify right side
    110,912.98x = 10,043,764,074.23
  5. Step 5: Solve for x
    x = 10,043,764,074.23/110,912.98
  6. Step 6: Final answer
    x = 90,555.35

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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.