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Finding the Fourth Proportional to 217,246.30, 325,869.45 and 164,758.30

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Solution

The fourth proportional to 217,246.30, 325,869.45 and 164,758.30 is: 247,137.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,246.30 : 325,869.45 = 164,758.30 : x
  2. Step 2: Convert to fraction form
    217,246.30/325,869.45 = 164,758.30/x
  3. Step 3: Cross multiply
    217,246.30x = 325,869.45 × 164,758.30
  4. Step 4: Simplify right side
    217,246.30x = 53,689,696,603.94
  5. Step 5: Solve for x
    x = 53,689,696,603.94/217,246.30
  6. Step 6: Final answer
    x = 247,137.45

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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.