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Finding the Fourth Proportional to 255,628.60, 352,751.40 and 140,900.92

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Solution

The fourth proportional to 255,628.60, 352,751.40 and 140,900.92 is: 194,434.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,628.60 : 352,751.40 = 140,900.92 : x
  2. Step 2: Convert to fraction form
    255,628.60/352,751.40 = 140,900.92/x
  3. Step 3: Cross multiply
    255,628.60x = 352,751.40 × 140,900.92
  4. Step 4: Simplify right side
    255,628.60x = 49,702,996,791.29
  5. Step 5: Solve for x
    x = 49,702,996,791.29/255,628.60
  6. Step 6: Final answer
    x = 194,434.41

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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.