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Finding the Fourth Proportional to 255,921.34, 353,168.99 and 141,200.91

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Solution

The fourth proportional to 255,921.34, 353,168.99 and 141,200.91 is: 194,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,921.34 : 353,168.99 = 141,200.91 : x
  2. Step 2: Convert to fraction form
    255,921.34/353,168.99 = 141,200.91/x
  3. Step 3: Cross multiply
    255,921.34x = 353,168.99 × 141,200.91
  4. Step 4: Simplify right side
    255,921.34x = 49,867,782,771.78
  5. Step 5: Solve for x
    x = 49,867,782,771.78/255,921.34
  6. Step 6: Final answer
    x = 194,855.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.