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Finding the Fourth Proportional to 170,803.95, 256,067.46 and 71,038.80

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Solution

The fourth proportional to 170,803.95, 256,067.46 and 71,038.80 is: 106,500.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,803.95 : 256,067.46 = 71,038.80 : x
  2. Step 2: Convert to fraction form
    170,803.95/256,067.46 = 71,038.80/x
  3. Step 3: Cross multiply
    170,803.95x = 256,067.46 × 71,038.80
  4. Step 4: Simplify right side
    170,803.95x = 18,190,725,077.45
  5. Step 5: Solve for x
    x = 18,190,725,077.45/170,803.95
  6. Step 6: Final answer
    x = 106,500.61

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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.