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Finding the Fourth Proportional to 255,571.63, 352,691.18 and 140,854.37

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Solution

The fourth proportional to 255,571.63, 352,691.18 and 140,854.37 is: 194,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,571.63 : 352,691.18 = 140,854.37 : x
  2. Step 2: Convert to fraction form
    255,571.63/352,691.18 = 140,854.37/x
  3. Step 3: Cross multiply
    255,571.63x = 352,691.18 × 140,854.37
  4. Step 4: Simplify right side
    255,571.63x = 49,678,092,993.00
  5. Step 5: Solve for x
    x = 49,678,092,993.00/255,571.63
  6. Step 6: Final answer
    x = 194,380.31

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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.