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Finding the Fourth Proportional to 178,653.43, 269,049.70 and 162,710.20

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Solution

The fourth proportional to 178,653.43, 269,049.70 and 162,710.20 is: 245,039.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,653.43 : 269,049.70 = 162,710.20 : x
  2. Step 2: Convert to fraction form
    178,653.43/269,049.70 = 162,710.20/x
  3. Step 3: Cross multiply
    178,653.43x = 269,049.70 × 162,710.20
  4. Step 4: Simplify right side
    178,653.43x = 43,777,130,496.94
  5. Step 5: Solve for x
    x = 43,777,130,496.94/178,653.43
  6. Step 6: Final answer
    x = 245,039.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.