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Finding the Fourth Proportional to 169,543.53, 254,272.77 and 69,731.28

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Solution

The fourth proportional to 169,543.53, 254,272.77 and 69,731.28 is: 104,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,543.53 : 254,272.77 = 69,731.28 : x
  2. Step 2: Convert to fraction form
    169,543.53/254,272.77 = 69,731.28/x
  3. Step 3: Cross multiply
    169,543.53x = 254,272.77 × 69,731.28
  4. Step 4: Simplify right side
    169,543.53x = 17,730,765,721.25
  5. Step 5: Solve for x
    x = 17,730,765,721.25/169,543.53
  6. Step 6: Final answer
    x = 104,579.43

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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.