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Finding the Fourth Proportional to 66,661,622.84, 99,971,680.95 and 23,520,718.69

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Solution

The fourth proportional to 66,661,622.84, 99,971,680.95 and 23,520,718.69 is: 35,273,755.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,661,622.84 : 99,971,680.95 = 23,520,718.69 : x
  2. Step 2: Convert to fraction form
    66,661,622.84/99,971,680.95 = 23,520,718.69/x
  3. Step 3: Cross multiply
    66,661,622.84x = 99,971,680.95 × 23,520,718.69
  4. Step 4: Simplify right side
    66,661,622.84x = 2,351,405,784,341,453
  5. Step 5: Solve for x
    x = 2,351,405,784,341,453/66,661,622.84
  6. Step 6: Final answer
    x = 35,273,755.48

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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.