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Finding the Fourth Proportional to 325,076.64, 448,425.16 and 189,095.28

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Solution

The fourth proportional to 325,076.64, 448,425.16 and 189,095.28 is: 260,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,076.64 : 448,425.16 = 189,095.28 : x
  2. Step 2: Convert to fraction form
    325,076.64/448,425.16 = 189,095.28/x
  3. Step 3: Cross multiply
    325,076.64x = 448,425.16 × 189,095.28
  4. Step 4: Simplify right side
    325,076.64x = 84,795,081,189.24
  5. Step 5: Solve for x
    x = 84,795,081,189.24/325,076.64
  6. Step 6: Final answer
    x = 260,846.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.