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Finding the Fourth Proportional to 259,866.38, 358,615.60 and 140,634.38

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Solution

The fourth proportional to 259,866.38, 358,615.60 and 140,634.38 is: 194,075.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,866.38 : 358,615.60 = 140,634.38 : x
  2. Step 2: Convert to fraction form
    259,866.38/358,615.60 = 140,634.38/x
  3. Step 3: Cross multiply
    259,866.38x = 358,615.60 × 140,634.38
  4. Step 4: Simplify right side
    259,866.38x = 50,433,680,771.25
  5. Step 5: Solve for x
    x = 50,433,680,771.25/259,866.38
  6. Step 6: Final answer
    x = 194,075.44

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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.