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Finding the Fourth Proportional to 307,725.64, 461,805.31 and 108,061.58

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Solution

The fourth proportional to 307,725.64, 461,805.31 and 108,061.58 is: 162,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,725.64 : 461,805.31 = 108,061.58 : x
  2. Step 2: Convert to fraction form
    307,725.64/461,805.31 = 108,061.58/x
  3. Step 3: Cross multiply
    307,725.64x = 461,805.31 × 108,061.58
  4. Step 4: Simplify right side
    307,725.64x = 49,903,411,450.99
  5. Step 5: Solve for x
    x = 49,903,411,450.99/307,725.64
  6. Step 6: Final answer
    x = 162,168.52

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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.