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Finding the Fourth Proportional to 168,671.86, 253,049.31 and 118,849.25

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Solution

The fourth proportional to 168,671.86, 253,049.31 and 118,849.25 is: 178,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,671.86 : 253,049.31 = 118,849.25 : x
  2. Step 2: Convert to fraction form
    168,671.86/253,049.31 = 118,849.25/x
  3. Step 3: Cross multiply
    168,671.86x = 253,049.31 × 118,849.25
  4. Step 4: Simplify right side
    168,671.86x = 30,074,721,339.14
  5. Step 5: Solve for x
    x = 30,074,721,339.14/168,671.86
  6. Step 6: Final answer
    x = 178,303.14

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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.