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Finding the Fourth Proportional to 170,811.48, 256,217.70 and 100,594.20

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Solution

The fourth proportional to 170,811.48, 256,217.70 and 100,594.20 is: 150,891.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,811.48 : 256,217.70 = 100,594.20 : x
  2. Step 2: Convert to fraction form
    170,811.48/256,217.70 = 100,594.20/x
  3. Step 3: Cross multiply
    170,811.48x = 256,217.70 × 100,594.20
  4. Step 4: Simplify right side
    170,811.48x = 25,774,014,557.34
  5. Step 5: Solve for x
    x = 25,774,014,557.34/170,811.48
  6. Step 6: Final answer
    x = 150,891.58

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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.