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Finding the Fourth Proportional to 19,761,205.20, 29,641,807.80 and 16,401,973.20

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Solution

The fourth proportional to 19,761,205.20, 29,641,807.80 and 16,401,973.20 is: 24,602,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761,205.20 : 29,641,807.80 = 16,401,973.20 : x
  2. Step 2: Convert to fraction form
    19,761,205.20/29,641,807.80 = 16,401,973.20/x
  3. Step 3: Cross multiply
    19,761,205.20x = 29,641,807.80 × 16,401,973.20
  4. Step 4: Simplify right side
    19,761,205.20x = 486,184,137,135,150.94
  5. Step 5: Solve for x
    x = 486,184,137,135,150.94/19,761,205.20
  6. Step 6: Final answer
    x = 24,602,959.80

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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.