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Finding the Fourth Proportional to 221,277,759.40, 331,916,639.10 and 221,277,759.40

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Solution

The fourth proportional to 221,277,759.40, 331,916,639.10 and 221,277,759.40 is: 331,916,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,277,759.40 : 331,916,639.10 = 221,277,759.40 : x
  2. Step 2: Convert to fraction form
    221,277,759.40/331,916,639.10 = 221,277,759.40/x
  3. Step 3: Cross multiply
    221,277,759.40x = 331,916,639.10 × 221,277,759.40
  4. Step 4: Simplify right side
    221,277,759.40x = 73,445,770,207,626,432
  5. Step 5: Solve for x
    x = 73,445,770,207,626,432/221,277,759.40
  6. Step 6: Final answer
    x = 331,916,639.10

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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.