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Finding the Fourth Proportional to 66,429,999.30, 99,644,998.95 and 18,560,943.30

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Solution

The fourth proportional to 66,429,999.30, 99,644,998.95 and 18,560,943.30 is: 27,841,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,999.30 : 99,644,998.95 = 18,560,943.30 : x
  2. Step 2: Convert to fraction form
    66,429,999.30/99,644,998.95 = 18,560,943.30/x
  3. Step 3: Cross multiply
    66,429,999.30x = 99,644,998.95 × 18,560,943.30
  4. Step 4: Simplify right side
    66,429,999.30x = 1,849,505,175,639,509.75
  5. Step 5: Solve for x
    x = 1,849,505,175,639,509.75/66,429,999.30
  6. Step 6: Final answer
    x = 27,841,414.95

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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.