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Finding the Fourth Proportional to 111,040.68, 153,236.34 and 60,739.68

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Solution

The fourth proportional to 111,040.68, 153,236.34 and 60,739.68 is: 83,820.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,040.68 : 153,236.34 = 60,739.68 : x
  2. Step 2: Convert to fraction form
    111,040.68/153,236.34 = 60,739.68/x
  3. Step 3: Cross multiply
    111,040.68x = 153,236.34 × 60,739.68
  4. Step 4: Simplify right side
    111,040.68x = 9,307,526,255.97
  5. Step 5: Solve for x
    x = 9,307,526,255.97/111,040.68
  6. Step 6: Final answer
    x = 83,820.87

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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.