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Finding the Fourth Proportional to 175,090.80, 262,943.40 and 169,561.20

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Solution

The fourth proportional to 175,090.80, 262,943.40 and 169,561.20 is: 254,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,090.80 : 262,943.40 = 169,561.20 : x
  2. Step 2: Convert to fraction form
    175,090.80/262,943.40 = 169,561.20/x
  3. Step 3: Cross multiply
    175,090.80x = 262,943.40 × 169,561.20
  4. Step 4: Simplify right side
    175,090.80x = 44,584,998,436.08
  5. Step 5: Solve for x
    x = 44,584,998,436.08/175,090.80
  6. Step 6: Final answer
    x = 254,639.30

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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.