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Finding the Fourth Proportional to 108,616.20, 162,924.30 and 104,987.40

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Solution

The fourth proportional to 108,616.20, 162,924.30 and 104,987.40 is: 157,481.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,616.20 : 162,924.30 = 104,987.40 : x
  2. Step 2: Convert to fraction form
    108,616.20/162,924.30 = 104,987.40/x
  3. Step 3: Cross multiply
    108,616.20x = 162,924.30 × 104,987.40
  4. Step 4: Simplify right side
    108,616.20x = 17,104,998,653.82
  5. Step 5: Solve for x
    x = 17,104,998,653.82/108,616.20
  6. Step 6: Final answer
    x = 157,481.10

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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.