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Finding the Fourth Proportional to 265,694.06, 398,539.61 and 66,014.36

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Solution

The fourth proportional to 265,694.06, 398,539.61 and 66,014.36 is: 99,021.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,694.06 : 398,539.61 = 66,014.36 : x
  2. Step 2: Convert to fraction form
    265,694.06/398,539.61 = 66,014.36/x
  3. Step 3: Cross multiply
    265,694.06x = 398,539.61 × 66,014.36
  4. Step 4: Simplify right side
    265,694.06x = 26,309,336,708.11
  5. Step 5: Solve for x
    x = 26,309,336,708.11/265,694.06
  6. Step 6: Final answer
    x = 99,021.17

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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.