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Finding the Fourth Proportional to 217,087.59, 325,237.71 and 212,363.67

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Solution

The fourth proportional to 217,087.59, 325,237.71 and 212,363.67 is: 318,160.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,087.59 : 325,237.71 = 212,363.67 : x
  2. Step 2: Convert to fraction form
    217,087.59/325,237.71 = 212,363.67/x
  3. Step 3: Cross multiply
    217,087.59x = 325,237.71 × 212,363.67
  4. Step 4: Simplify right side
    217,087.59x = 69,068,673,294.72
  5. Step 5: Solve for x
    x = 69,068,673,294.72/217,087.59
  6. Step 6: Final answer
    x = 318,160.40

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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.