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Finding the Fourth Proportional to 201,216.60, 301,715.55 and 68,028.30

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Solution

The fourth proportional to 201,216.60, 301,715.55 and 68,028.30 is: 102,005.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,216.60 : 301,715.55 = 68,028.30 : x
  2. Step 2: Convert to fraction form
    201,216.60/301,715.55 = 68,028.30/x
  3. Step 3: Cross multiply
    201,216.60x = 301,715.55 × 68,028.30
  4. Step 4: Simplify right side
    201,216.60x = 20,525,195,950.07
  5. Step 5: Solve for x
    x = 20,525,195,950.07/201,216.60
  6. Step 6: Final answer
    x = 102,005.48

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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.