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Finding the Fourth Proportional to 79,713,612.80, 119,598,412.80 and 34,289,331.20

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Solution

The fourth proportional to 79,713,612.80, 119,598,412.80 and 34,289,331.20 is: 51,446,038.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713,612.80 : 119,598,412.80 = 34,289,331.20 : x
  2. Step 2: Convert to fraction form
    79,713,612.80/119,598,412.80 = 34,289,331.20/x
  3. Step 3: Cross multiply
    79,713,612.80x = 119,598,412.80 × 34,289,331.20
  4. Step 4: Simplify right side
    79,713,612.80x = 4,100,949,587,493,519.50
  5. Step 5: Solve for x
    x = 4,100,949,587,493,519.50/79,713,612.80
  6. Step 6: Final answer
    x = 51,446,038.43

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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.