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Finding the Fourth Proportional to 66,567,892.80, 99,862,898.40 and 26,179,694.40

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Solution

The fourth proportional to 66,567,892.80, 99,862,898.40 and 26,179,694.40 is: 39,273,890.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,567,892.80 : 99,862,898.40 = 26,179,694.40 : x
  2. Step 2: Convert to fraction form
    66,567,892.80/99,862,898.40 = 26,179,694.40/x
  3. Step 3: Cross multiply
    66,567,892.80x = 99,862,898.40 × 26,179,694.40
  4. Step 4: Simplify right side
    66,567,892.80x = 2,614,380,162,010,249
  5. Step 5: Solve for x
    x = 2,614,380,162,010,249/66,567,892.80
  6. Step 6: Final answer
    x = 39,273,890.94

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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.