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Finding the Fourth Proportional to 323,015.16, 484,574.64 and 136,054.20

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Solution

The fourth proportional to 323,015.16, 484,574.64 and 136,054.20 is: 204,103.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,015.16 : 484,574.64 = 136,054.20 : x
  2. Step 2: Convert to fraction form
    323,015.16/484,574.64 = 136,054.20/x
  3. Step 3: Cross multiply
    323,015.16x = 484,574.64 × 136,054.20
  4. Step 4: Simplify right side
    323,015.16x = 65,928,414,985.49
  5. Step 5: Solve for x
    x = 65,928,414,985.49/323,015.16
  6. Step 6: Final answer
    x = 204,103.16

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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.