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Finding the Fourth Proportional to 322,921.04, 484,384 and 112,559.18

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Solution

The fourth proportional to 322,921.04, 484,384 and 112,559.18 is: 168,839.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,921.04 : 484,384 = 112,559.18 : x
  2. Step 2: Convert to fraction form
    322,921.04/484,384 = 112,559.18/x
  3. Step 3: Cross multiply
    322,921.04x = 484,384 × 112,559.18
  4. Step 4: Simplify right side
    322,921.04x = 54,521,865,845.12
  5. Step 5: Solve for x
    x = 54,521,865,845.12/322,921.04
  6. Step 6: Final answer
    x = 168,839.62

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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.