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Finding the Fourth Proportional to 171,053.14, 256,579.70 and 76,258.84

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Solution

The fourth proportional to 171,053.14, 256,579.70 and 76,258.84 is: 114,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,053.14 : 256,579.70 = 76,258.84 : x
  2. Step 2: Convert to fraction form
    171,053.14/256,579.70 = 76,258.84/x
  3. Step 3: Cross multiply
    171,053.14x = 256,579.70 × 76,258.84
  4. Step 4: Simplify right side
    171,053.14x = 19,566,470,289.55
  5. Step 5: Solve for x
    x = 19,566,470,289.55/171,053.14
  6. Step 6: Final answer
    x = 114,388.26

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1.5x scale

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.