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Finding the Fourth Proportional to 201,211.30, 301,707.60 and 82,894.60

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Solution

The fourth proportional to 201,211.30, 301,707.60 and 82,894.60 is: 124,296.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,211.30 : 301,707.60 = 82,894.60 : x
  2. Step 2: Convert to fraction form
    201,211.30/301,707.60 = 82,894.60/x
  3. Step 3: Cross multiply
    201,211.30x = 301,707.60 × 82,894.60
  4. Step 4: Simplify right side
    201,211.30x = 25,009,930,818.96
  5. Step 5: Solve for x
    x = 25,009,930,818.96/201,211.30
  6. Step 6: Final answer
    x = 124,296.85

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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.