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Finding the Fourth Proportional to 255,970.21, 353,236.05 and 141,249.76

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Solution

The fourth proportional to 255,970.21, 353,236.05 and 141,249.76 is: 194,923.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,970.21 : 353,236.05 = 141,249.76 : x
  2. Step 2: Convert to fraction form
    255,970.21/353,236.05 = 141,249.76/x
  3. Step 3: Cross multiply
    255,970.21x = 353,236.05 × 141,249.76
  4. Step 4: Simplify right side
    255,970.21x = 49,894,507,285.85
  5. Step 5: Solve for x
    x = 49,894,507,285.85/255,970.21
  6. Step 6: Final answer
    x = 194,923.10

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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.