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Finding the Fourth Proportional to 321,468.84, 481,736.70 and 180,927.36

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Solution

The fourth proportional to 321,468.84, 481,736.70 and 180,927.36 is: 271,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,468.84 : 481,736.70 = 180,927.36 : x
  2. Step 2: Convert to fraction form
    321,468.84/481,736.70 = 180,927.36/x
  3. Step 3: Cross multiply
    321,468.84x = 481,736.70 × 180,927.36
  4. Step 4: Simplify right side
    321,468.84x = 87,159,349,346.11
  5. Step 5: Solve for x
    x = 87,159,349,346.11/321,468.84
  6. Step 6: Final answer
    x = 271,128.45

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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.