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Finding the Fourth Proportional to 169,636.30, 254,066.91 and 80,952.10

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Solution

The fourth proportional to 169,636.30, 254,066.91 and 80,952.10 is: 121,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,636.30 : 254,066.91 = 80,952.10 : x
  2. Step 2: Convert to fraction form
    169,636.30/254,066.91 = 80,952.10/x
  3. Step 3: Cross multiply
    169,636.30x = 254,066.91 × 80,952.10
  4. Step 4: Simplify right side
    169,636.30x = 20,567,249,905.01
  5. Step 5: Solve for x
    x = 20,567,249,905.01/169,636.30
  6. Step 6: Final answer
    x = 121,243.21

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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.