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Finding the Fourth Proportional to 66,874,558.30, 100,311,837.45 and 66,874,558.30

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Solution

The fourth proportional to 66,874,558.30, 100,311,837.45 and 66,874,558.30 is: 100,311,837.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,874,558.30 : 100,311,837.45 = 66,874,558.30 : x
  2. Step 2: Convert to fraction form
    66,874,558.30/100,311,837.45 = 66,874,558.30/x
  3. Step 3: Cross multiply
    66,874,558.30x = 100,311,837.45 × 66,874,558.30
  4. Step 4: Simplify right side
    66,874,558.30x = 6,708,309,821,730,148
  5. Step 5: Solve for x
    x = 6,708,309,821,730,148/66,874,558.30
  6. Step 6: Final answer
    x = 100,311,837.45

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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.