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Finding the Fourth Proportional to 201,691.08, 302,533.85 and 68,664.11

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Solution

The fourth proportional to 201,691.08, 302,533.85 and 68,664.11 is: 102,995.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,691.08 : 302,533.85 = 68,664.11 : x
  2. Step 2: Convert to fraction form
    201,691.08/302,533.85 = 68,664.11/x
  3. Step 3: Cross multiply
    201,691.08x = 302,533.85 × 68,664.11
  4. Step 4: Simplify right side
    201,691.08x = 20,773,216,214.11
  5. Step 5: Solve for x
    x = 20,773,216,214.11/201,691.08
  6. Step 6: Final answer
    x = 102,995.22

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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.