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Finding the Fourth Proportional to 201,078.36, 301,660.92 and 67,955.67

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Solution

The fourth proportional to 201,078.36, 301,660.92 and 67,955.67 is: 101,948.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,078.36 : 301,660.92 = 67,955.67 : x
  2. Step 2: Convert to fraction form
    201,078.36/301,660.92 = 67,955.67/x
  3. Step 3: Cross multiply
    201,078.36x = 301,660.92 × 67,955.67
  4. Step 4: Simplify right side
    201,078.36x = 20,499,569,931.42
  5. Step 5: Solve for x
    x = 20,499,569,931.42/201,078.36
  6. Step 6: Final answer
    x = 101,948.17

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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.