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Finding the Fourth Proportional to 168,695.33, 252,916.56 and 102,119.40

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Solution

The fourth proportional to 168,695.33, 252,916.56 and 102,119.40 is: 153,102.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,695.33 : 252,916.56 = 102,119.40 : x
  2. Step 2: Convert to fraction form
    168,695.33/252,916.56 = 102,119.40/x
  3. Step 3: Cross multiply
    168,695.33x = 252,916.56 × 102,119.40
  4. Step 4: Simplify right side
    168,695.33x = 25,827,687,357.26
  5. Step 5: Solve for x
    x = 25,827,687,357.26/168,695.33
  6. Step 6: Final answer
    x = 153,102.57

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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.