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Finding the Fourth Proportional to 70,590,563.10, 105,885,844.65 and 70,590,563.10

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Solution

The fourth proportional to 70,590,563.10, 105,885,844.65 and 70,590,563.10 is: 105,885,844.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,590,563.10 : 105,885,844.65 = 70,590,563.10 : x
  2. Step 2: Convert to fraction form
    70,590,563.10/105,885,844.65 = 70,590,563.10/x
  3. Step 3: Cross multiply
    70,590,563.10x = 105,885,844.65 × 70,590,563.10
  4. Step 4: Simplify right side
    70,590,563.10x = 7,474,541,398,162,622
  5. Step 5: Solve for x
    x = 7,474,541,398,162,622/70,590,563.10
  6. Step 6: Final answer
    x = 105,885,844.65

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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.