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Finding the Fourth Proportional to 255,049.92, 382,240.08 and 142,725.60

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Solution

The fourth proportional to 255,049.92, 382,240.08 and 142,725.60 is: 213,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,049.92 : 382,240.08 = 142,725.60 : x
  2. Step 2: Convert to fraction form
    255,049.92/382,240.08 = 142,725.60/x
  3. Step 3: Cross multiply
    255,049.92x = 382,240.08 × 142,725.60
  4. Step 4: Simplify right side
    255,049.92x = 54,555,444,762.05
  5. Step 5: Solve for x
    x = 54,555,444,762.05/255,049.92
  6. Step 6: Final answer
    x = 213,901.05

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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.