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Finding the Fourth Proportional to 201,805.44, 278,200.56 and 141,188.28

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Solution

The fourth proportional to 201,805.44, 278,200.56 and 141,188.28 is: 194,636.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,805.44 : 278,200.56 = 141,188.28 : x
  2. Step 2: Convert to fraction form
    201,805.44/278,200.56 = 141,188.28/x
  3. Step 3: Cross multiply
    201,805.44x = 278,200.56 × 141,188.28
  4. Step 4: Simplify right side
    201,805.44x = 39,278,658,561.44
  5. Step 5: Solve for x
    x = 39,278,658,561.44/201,805.44
  6. Step 6: Final answer
    x = 194,636.27

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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.