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Finding the Fourth Proportional to 220,908.04, 330,863.58 and 102,330.28

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Solution

The fourth proportional to 220,908.04, 330,863.58 and 102,330.28 is: 153,264.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,908.04 : 330,863.58 = 102,330.28 : x
  2. Step 2: Convert to fraction form
    220,908.04/330,863.58 = 102,330.28/x
  3. Step 3: Cross multiply
    220,908.04x = 330,863.58 × 102,330.28
  4. Step 4: Simplify right side
    220,908.04x = 33,857,362,783.20
  5. Step 5: Solve for x
    x = 33,857,362,783.20/220,908.04
  6. Step 6: Final answer
    x = 153,264.51

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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.