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Finding the Fourth Proportional to 19,783,361.20, 29,675,041.80 and 19,783,361.20

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Solution

The fourth proportional to 19,783,361.20, 29,675,041.80 and 19,783,361.20 is: 29,675,041.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783,361.20 : 29,675,041.80 = 19,783,361.20 : x
  2. Step 2: Convert to fraction form
    19,783,361.20/29,675,041.80 = 19,783,361.20/x
  3. Step 3: Cross multiply
    19,783,361.20x = 29,675,041.80 × 19,783,361.20
  4. Step 4: Simplify right side
    19,783,361.20x = 587,072,070,554,498.12
  5. Step 5: Solve for x
    x = 587,072,070,554,498.12/19,783,361.20
  6. Step 6: Final answer
    x = 29,675,041.80

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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.