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Finding the Fourth Proportional to 381,695,998.90, 572,543,998.35 and 94,481,662.90

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Solution

The fourth proportional to 381,695,998.90, 572,543,998.35 and 94,481,662.90 is: 141,722,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,695,998.90 : 572,543,998.35 = 94,481,662.90 : x
  2. Step 2: Convert to fraction form
    381,695,998.90/572,543,998.35 = 94,481,662.90/x
  3. Step 3: Cross multiply
    381,695,998.90x = 572,543,998.35 × 94,481,662.90
  4. Step 4: Simplify right side
    381,695,998.90x = 54,094,909,047,522,864
  5. Step 5: Solve for x
    x = 54,094,909,047,522,864/381,695,998.90
  6. Step 6: Final answer
    x = 141,722,494.35

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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.