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Finding the Fourth Proportional to 201,618.70, 302,428.05 and 164,293.90

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Solution

The fourth proportional to 201,618.70, 302,428.05 and 164,293.90 is: 246,440.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,618.70 : 302,428.05 = 164,293.90 : x
  2. Step 2: Convert to fraction form
    201,618.70/302,428.05 = 164,293.90/x
  3. Step 3: Cross multiply
    201,618.70x = 302,428.05 × 164,293.90
  4. Step 4: Simplify right side
    201,618.70x = 49,687,083,803.90
  5. Step 5: Solve for x
    x = 49,687,083,803.90/201,618.70
  6. Step 6: Final answer
    x = 246,440.85

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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.