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Finding the Fourth Proportional to 168,693.85, 252,915.78 and 102,118.23

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Solution

The fourth proportional to 168,693.85, 252,915.78 and 102,118.23 is: 153,101.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,693.85 : 252,915.78 = 102,118.23 : x
  2. Step 2: Convert to fraction form
    168,693.85/252,915.78 = 102,118.23/x
  3. Step 3: Cross multiply
    168,693.85x = 252,915.78 × 102,118.23
  4. Step 4: Simplify right side
    168,693.85x = 25,827,312,175.61
  5. Step 5: Solve for x
    x = 25,827,312,175.61/168,693.85
  6. Step 6: Final answer
    x = 153,101.68

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1.5x scale

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.