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Finding the Fourth Proportional to 111,574.56, 153,976.44 and 61,273.56

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Solution

The fourth proportional to 111,574.56, 153,976.44 and 61,273.56 is: 84,559.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,574.56 : 153,976.44 = 61,273.56 : x
  2. Step 2: Convert to fraction form
    111,574.56/153,976.44 = 61,273.56/x
  3. Step 3: Cross multiply
    111,574.56x = 153,976.44 × 61,273.56
  4. Step 4: Simplify right side
    111,574.56x = 9,434,684,634.93
  5. Step 5: Solve for x
    x = 9,434,684,634.93/111,574.56
  6. Step 6: Final answer
    x = 84,559.46

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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.