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Finding the Fourth Proportional to 168,671.61, 253,048.94 and 118,849

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Solution

The fourth proportional to 168,671.61, 253,048.94 and 118,849 is: 178,302.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,671.61 : 253,048.94 = 118,849 : x
  2. Step 2: Convert to fraction form
    168,671.61/253,048.94 = 118,849/x
  3. Step 3: Cross multiply
    168,671.61x = 253,048.94 × 118,849
  4. Step 4: Simplify right side
    168,671.61x = 30,074,613,470.06
  5. Step 5: Solve for x
    x = 30,074,613,470.06/168,671.61
  6. Step 6: Final answer
    x = 178,302.76

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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.