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Finding the Fourth Proportional to 179,625.60, 269,341.20 and 74,455.20

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Solution

The fourth proportional to 179,625.60, 269,341.20 and 74,455.20 is: 111,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,625.60 : 269,341.20 = 74,455.20 : x
  2. Step 2: Convert to fraction form
    179,625.60/269,341.20 = 74,455.20/x
  3. Step 3: Cross multiply
    179,625.60x = 269,341.20 × 74,455.20
  4. Step 4: Simplify right side
    179,625.60x = 20,053,852,914.24
  5. Step 5: Solve for x
    x = 20,053,852,914.24/179,625.60
  6. Step 6: Final answer
    x = 111,642.51

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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.