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Finding the Fourth Proportional to 69,509,432.40, 104,301,473.40 and 29,123,998.80

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Solution

The fourth proportional to 69,509,432.40, 104,301,473.40 and 29,123,998.80 is: 43,701,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,509,432.40 : 104,301,473.40 = 29,123,998.80 : x
  2. Step 2: Convert to fraction form
    69,509,432.40/104,301,473.40 = 29,123,998.80/x
  3. Step 3: Cross multiply
    69,509,432.40x = 104,301,473.40 × 29,123,998.80
  4. Step 4: Simplify right side
    69,509,432.40x = 3,037,675,986,139,832
  5. Step 5: Solve for x
    x = 3,037,675,986,139,832/69,509,432.40
  6. Step 6: Final answer
    x = 43,701,637.05

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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.