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Finding the Fourth Proportional to 111,576.24, 153,964.53 and 66,246.48

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Solution

The fourth proportional to 111,576.24, 153,964.53 and 66,246.48 is: 91,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,576.24 : 153,964.53 = 66,246.48 : x
  2. Step 2: Convert to fraction form
    111,576.24/153,964.53 = 66,246.48/x
  3. Step 3: Cross multiply
    111,576.24x = 153,964.53 × 66,246.48
  4. Step 4: Simplify right side
    111,576.24x = 10,199,608,157.35
  5. Step 5: Solve for x
    x = 10,199,608,157.35/111,576.24
  6. Step 6: Final answer
    x = 91,413.80

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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.