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Finding the Fourth Proportional to 108,416.90, 162,653.70 and 41,859.20

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Solution

The fourth proportional to 108,416.90, 162,653.70 and 41,859.20 is: 62,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,416.90 : 162,653.70 = 41,859.20 : x
  2. Step 2: Convert to fraction form
    108,416.90/162,653.70 = 41,859.20/x
  3. Step 3: Cross multiply
    108,416.90x = 162,653.70 × 41,859.20
  4. Step 4: Simplify right side
    108,416.90x = 6,808,553,759.04
  5. Step 5: Solve for x
    x = 6,808,553,759.04/108,416.90
  6. Step 6: Final answer
    x = 62,799.75

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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.