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Finding the Fourth Proportional to 169,422.12, 254,128.86 and 44,764.20

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Solution

The fourth proportional to 169,422.12, 254,128.86 and 44,764.20 is: 67,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,422.12 : 254,128.86 = 44,764.20 : x
  2. Step 2: Convert to fraction form
    169,422.12/254,128.86 = 44,764.20/x
  3. Step 3: Cross multiply
    169,422.12x = 254,128.86 × 44,764.20
  4. Step 4: Simplify right side
    169,422.12x = 11,375,875,114.81
  5. Step 5: Solve for x
    x = 11,375,875,114.81/169,422.12
  6. Step 6: Final answer
    x = 67,145.16

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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.