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Finding the Fourth Proportional to 322,487.84, 483,742.56 and 112,127.60

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Solution

The fourth proportional to 322,487.84, 483,742.56 and 112,127.60 is: 168,195.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,487.84 : 483,742.56 = 112,127.60 : x
  2. Step 2: Convert to fraction form
    322,487.84/483,742.56 = 112,127.60/x
  3. Step 3: Cross multiply
    322,487.84x = 483,742.56 × 112,127.60
  4. Step 4: Simplify right side
    322,487.84x = 54,240,892,270.66
  5. Step 5: Solve for x
    x = 54,240,892,270.66/322,487.84
  6. Step 6: Final answer
    x = 168,195.16

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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.