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Finding the Fourth Proportional to 255,306.01, 352,308.49 and 140,562.31

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Solution

The fourth proportional to 255,306.01, 352,308.49 and 140,562.31 is: 193,968.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,306.01 : 352,308.49 = 140,562.31 : x
  2. Step 2: Convert to fraction form
    255,306.01/352,308.49 = 140,562.31/x
  3. Step 3: Cross multiply
    255,306.01x = 352,308.49 × 140,562.31
  4. Step 4: Simplify right side
    255,306.01x = 49,521,295,187.01
  5. Step 5: Solve for x
    x = 49,521,295,187.01/255,306.01
  6. Step 6: Final answer
    x = 193,968.39

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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.