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Finding the Fourth Proportional to 269,163.60, 402,967.80 and 164,187.60

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Solution

The fourth proportional to 269,163.60, 402,967.80 and 164,187.60 is: 245,807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,163.60 : 402,967.80 = 164,187.60 : x
  2. Step 2: Convert to fraction form
    269,163.60/402,967.80 = 164,187.60/x
  3. Step 3: Cross multiply
    269,163.60x = 402,967.80 × 164,187.60
  4. Step 4: Simplify right side
    269,163.60x = 66,162,315,959.28
  5. Step 5: Solve for x
    x = 66,162,315,959.28/269,163.60
  6. Step 6: Final answer
    x = 245,807.07

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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.