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Finding the Fourth Proportional to 168,098.72, 252,166.53 and 83,880.08

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Solution

The fourth proportional to 168,098.72, 252,166.53 and 83,880.08 is: 125,829.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,098.72 : 252,166.53 = 83,880.08 : x
  2. Step 2: Convert to fraction form
    168,098.72/252,166.53 = 83,880.08/x
  3. Step 3: Cross multiply
    168,098.72x = 252,166.53 × 83,880.08
  4. Step 4: Simplify right side
    168,098.72x = 21,151,748,709.72
  5. Step 5: Solve for x
    x = 21,151,748,709.72/168,098.72
  6. Step 6: Final answer
    x = 125,829.33

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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.