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Finding the Fourth Proportional to 111,859.24, 167,672.22 and 45,345.28

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Solution

The fourth proportional to 111,859.24, 167,672.22 and 45,345.28 is: 67,970.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,859.24 : 167,672.22 = 45,345.28 : x
  2. Step 2: Convert to fraction form
    111,859.24/167,672.22 = 45,345.28/x
  3. Step 3: Cross multiply
    111,859.24x = 167,672.22 × 45,345.28
  4. Step 4: Simplify right side
    111,859.24x = 7,603,143,764.12
  5. Step 5: Solve for x
    x = 7,603,143,764.12/111,859.24
  6. Step 6: Final answer
    x = 67,970.64

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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.