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Finding the Fourth Proportional to 281,953.08, 389,100.24 and 154,627.56

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Solution

The fourth proportional to 281,953.08, 389,100.24 and 154,627.56 is: 213,388.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,953.08 : 389,100.24 = 154,627.56 : x
  2. Step 2: Convert to fraction form
    281,953.08/389,100.24 = 154,627.56/x
  3. Step 3: Cross multiply
    281,953.08x = 389,100.24 × 154,627.56
  4. Step 4: Simplify right side
    281,953.08x = 60,165,620,706.61
  5. Step 5: Solve for x
    x = 60,165,620,706.61/281,953.08
  6. Step 6: Final answer
    x = 213,388.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.