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Finding the Fourth Proportional to 351,140.40, 526,710.60 and 201,841.20

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Solution

The fourth proportional to 351,140.40, 526,710.60 and 201,841.20 is: 302,761.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,140.40 : 526,710.60 = 201,841.20 : x
  2. Step 2: Convert to fraction form
    351,140.40/526,710.60 = 201,841.20/x
  3. Step 3: Cross multiply
    351,140.40x = 526,710.60 × 201,841.20
  4. Step 4: Simplify right side
    351,140.40x = 106,311,899,556.72
  5. Step 5: Solve for x
    x = 106,311,899,556.72/351,140.40
  6. Step 6: Final answer
    x = 302,761.80

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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.