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Finding the Fourth Proportional to 254,616.15, 382,007.14 and 121,479.19

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Solution

The fourth proportional to 254,616.15, 382,007.14 and 121,479.19 is: 182,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,616.15 : 382,007.14 = 121,479.19 : x
  2. Step 2: Convert to fraction form
    254,616.15/382,007.14 = 121,479.19/x
  3. Step 3: Cross multiply
    254,616.15x = 382,007.14 × 121,479.19
  4. Step 4: Simplify right side
    254,616.15x = 46,405,916,682.70
  5. Step 5: Solve for x
    x = 46,405,916,682.70/254,616.15
  6. Step 6: Final answer
    x = 182,258.34

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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.