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Finding the Fourth Proportional to 60,694,798.20, 91,042,197.30 and 56,663,719.80

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Solution

The fourth proportional to 60,694,798.20, 91,042,197.30 and 56,663,719.80 is: 84,995,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,694,798.20 : 91,042,197.30 = 56,663,719.80 : x
  2. Step 2: Convert to fraction form
    60,694,798.20/91,042,197.30 = 56,663,719.80/x
  3. Step 3: Cross multiply
    60,694,798.20x = 91,042,197.30 × 56,663,719.80
  4. Step 4: Simplify right side
    60,694,798.20x = 5,158,789,557,783,516
  5. Step 5: Solve for x
    x = 5,158,789,557,783,516/60,694,798.20
  6. Step 6: Final answer
    x = 84,995,579.70

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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.