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Finding the Fourth Proportional to 110,693.44, 166,128.63 and 57,400.57

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Solution

The fourth proportional to 110,693.44, 166,128.63 and 57,400.57 is: 86,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,693.44 : 166,128.63 = 57,400.57 : x
  2. Step 2: Convert to fraction form
    110,693.44/166,128.63 = 57,400.57/x
  3. Step 3: Cross multiply
    110,693.44x = 166,128.63 × 57,400.57
  4. Step 4: Simplify right side
    110,693.44x = 9,535,878,055.32
  5. Step 5: Solve for x
    x = 9,535,878,055.32/110,693.44
  6. Step 6: Final answer
    x = 86,146.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.