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Finding the Fourth Proportional to 170,390.23, 255,585.30 and 45,731.23

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Solution

The fourth proportional to 170,390.23, 255,585.30 and 45,731.23 is: 68,596.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,390.23 : 255,585.30 = 45,731.23 : x
  2. Step 2: Convert to fraction form
    170,390.23/255,585.30 = 45,731.23/x
  3. Step 3: Cross multiply
    170,390.23x = 255,585.30 × 45,731.23
  4. Step 4: Simplify right side
    170,390.23x = 11,688,229,499.96
  5. Step 5: Solve for x
    x = 11,688,229,499.96/170,390.23
  6. Step 6: Final answer
    x = 68,596.83

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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.