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Finding the Fourth Proportional to 201,340.15, 302,012.04 and 61,098.78

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Solution

The fourth proportional to 201,340.15, 302,012.04 and 61,098.78 is: 91,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,340.15 : 302,012.04 = 61,098.78 : x
  2. Step 2: Convert to fraction form
    201,340.15/302,012.04 = 61,098.78/x
  3. Step 3: Cross multiply
    201,340.15x = 302,012.04 × 61,098.78
  4. Step 4: Simplify right side
    201,340.15x = 18,452,567,189.31
  5. Step 5: Solve for x
    x = 18,452,567,189.31/201,340.15
  6. Step 6: Final answer
    x = 91,648.72

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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.