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Finding the Fourth Proportional to 140,189.52, 209,211.45 and 125,230.44

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Solution

The fourth proportional to 140,189.52, 209,211.45 and 125,230.44 is: 186,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,189.52 : 209,211.45 = 125,230.44 : x
  2. Step 2: Convert to fraction form
    140,189.52/209,211.45 = 125,230.44/x
  3. Step 3: Cross multiply
    140,189.52x = 209,211.45 × 125,230.44
  4. Step 4: Simplify right side
    140,189.52x = 26,199,641,936.54
  5. Step 5: Solve for x
    x = 26,199,641,936.54/140,189.52
  6. Step 6: Final answer
    x = 186,887.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.