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Finding the Fourth Proportional to 108,634.80, 162,952.20 and 104,698.20

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Solution

The fourth proportional to 108,634.80, 162,952.20 and 104,698.20 is: 157,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,634.80 : 162,952.20 = 104,698.20 : x
  2. Step 2: Convert to fraction form
    108,634.80/162,952.20 = 104,698.20/x
  3. Step 3: Cross multiply
    108,634.80x = 162,952.20 × 104,698.20
  4. Step 4: Simplify right side
    108,634.80x = 17,060,802,026.04
  5. Step 5: Solve for x
    x = 17,060,802,026.04/108,634.80
  6. Step 6: Final answer
    x = 157,047.30

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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.