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Finding the Fourth Proportional to 281,880,667.10, 422,821,000.65 and 281,880,667.10

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Solution

The fourth proportional to 281,880,667.10, 422,821,000.65 and 281,880,667.10 is: 422,821,000.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,880,667.10 : 422,821,000.65 = 281,880,667.10 : x
  2. Step 2: Convert to fraction form
    281,880,667.10/422,821,000.65 = 281,880,667.10/x
  3. Step 3: Cross multiply
    281,880,667.10x = 422,821,000.65 × 281,880,667.10
  4. Step 4: Simplify right side
    281,880,667.10x = 119,185,065,727,111,536
  5. Step 5: Solve for x
    x = 119,185,065,727,111,536/281,880,667.10
  6. Step 6: Final answer
    x = 422,821,000.65

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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.