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Finding the Fourth Proportional to 217,092.20, 325,638.30 and 190,848.20

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Solution

The fourth proportional to 217,092.20, 325,638.30 and 190,848.20 is: 286,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,092.20 : 325,638.30 = 190,848.20 : x
  2. Step 2: Convert to fraction form
    217,092.20/325,638.30 = 190,848.20/x
  3. Step 3: Cross multiply
    217,092.20x = 325,638.30 × 190,848.20
  4. Step 4: Simplify right side
    217,092.20x = 62,147,483,406.06
  5. Step 5: Solve for x
    x = 62,147,483,406.06/217,092.20
  6. Step 6: Final answer
    x = 286,272.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.