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Finding the Fourth Proportional to 170,232.12, 255,384.78 and 84,889.48

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Solution

The fourth proportional to 170,232.12, 255,384.78 and 84,889.48 is: 127,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,232.12 : 255,384.78 = 84,889.48 : x
  2. Step 2: Convert to fraction form
    170,232.12/255,384.78 = 84,889.48/x
  3. Step 3: Cross multiply
    170,232.12x = 255,384.78 × 84,889.48
  4. Step 4: Simplify right side
    170,232.12x = 21,679,481,174.11
  5. Step 5: Solve for x
    x = 21,679,481,174.11/170,232.12
  6. Step 6: Final answer
    x = 127,352.47

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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.