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Finding the Fourth Proportional to 322,617.28, 484,064.64 and 112,140.48

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Solution

The fourth proportional to 322,617.28, 484,064.64 and 112,140.48 is: 168,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,617.28 : 484,064.64 = 112,140.48 : x
  2. Step 2: Convert to fraction form
    322,617.28/484,064.64 = 112,140.48/x
  3. Step 3: Cross multiply
    322,617.28x = 484,064.64 × 112,140.48
  4. Step 4: Simplify right side
    322,617.28x = 54,283,241,080.63
  5. Step 5: Solve for x
    x = 54,283,241,080.63/322,617.28
  6. Step 6: Final answer
    x = 168,258.94

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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.