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Finding the Fourth Proportional to 218,714.63, 301,826.18 and 118,112.63

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Solution

The fourth proportional to 218,714.63, 301,826.18 and 118,112.63 is: 162,995.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,714.63 : 301,826.18 = 118,112.63 : x
  2. Step 2: Convert to fraction form
    218,714.63/301,826.18 = 118,112.63/x
  3. Step 3: Cross multiply
    218,714.63x = 301,826.18 × 118,112.63
  4. Step 4: Simplify right side
    218,714.63x = 35,649,482,708.80
  5. Step 5: Solve for x
    x = 35,649,482,708.80/218,714.63
  6. Step 6: Final answer
    x = 162,995.42

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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.