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Finding the Fourth Proportional to 154,544.48, 213,257.04 and 87,476.48

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Solution

The fourth proportional to 154,544.48, 213,257.04 and 87,476.48 is: 120,709.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,544.48 : 213,257.04 = 87,476.48 : x
  2. Step 2: Convert to fraction form
    154,544.48/213,257.04 = 87,476.48/x
  3. Step 3: Cross multiply
    154,544.48x = 213,257.04 × 87,476.48
  4. Step 4: Simplify right side
    154,544.48x = 18,654,975,194.42
  5. Step 5: Solve for x
    x = 18,654,975,194.42/154,544.48
  6. Step 6: Final answer
    x = 120,709.42

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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.