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Finding the Fourth Proportional to 255,266.54, 352,255.52 and 140,542.79

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Solution

The fourth proportional to 255,266.54, 352,255.52 and 140,542.79 is: 193,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,266.54 : 352,255.52 = 140,542.79 : x
  2. Step 2: Convert to fraction form
    255,266.54/352,255.52 = 140,542.79/x
  3. Step 3: Cross multiply
    255,266.54x = 352,255.52 × 140,542.79
  4. Step 4: Simplify right side
    255,266.54x = 49,506,972,870.99
  5. Step 5: Solve for x
    x = 49,506,972,870.99/255,266.54
  6. Step 6: Final answer
    x = 193,942.28

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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.