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Finding the Fourth Proportional to 170,953.30, 256,349.46 and 99,896.48

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Solution

The fourth proportional to 170,953.30, 256,349.46 and 99,896.48 is: 149,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,953.30 : 256,349.46 = 99,896.48 : x
  2. Step 2: Convert to fraction form
    170,953.30/256,349.46 = 99,896.48/x
  3. Step 3: Cross multiply
    170,953.30x = 256,349.46 × 99,896.48
  4. Step 4: Simplify right side
    170,953.30x = 25,608,408,557.30
  5. Step 5: Solve for x
    x = 25,608,408,557.30/170,953.30
  6. Step 6: Final answer
    x = 149,797.68

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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.