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Finding the Fourth Proportional to 325,086.84, 448,710.01 and 189,147.05

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Solution

The fourth proportional to 325,086.84, 448,710.01 and 189,147.05 is: 261,075.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,086.84 : 448,710.01 = 189,147.05 : x
  2. Step 2: Convert to fraction form
    325,086.84/448,710.01 = 189,147.05/x
  3. Step 3: Cross multiply
    325,086.84x = 448,710.01 × 189,147.05
  4. Step 4: Simplify right side
    325,086.84x = 84,872,175,149.46
  5. Step 5: Solve for x
    x = 84,872,175,149.46/325,086.84
  6. Step 6: Final answer
    x = 261,075.39

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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.