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Finding the Fourth Proportional to 618,347,218.22, 927,520,236.85 and 158,284,649.42

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Solution

The fourth proportional to 618,347,218.22, 927,520,236.85 and 158,284,649.42 is: 237,426,822.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,347,218.22 : 927,520,236.85 = 158,284,649.42 : x
  2. Step 2: Convert to fraction form
    618,347,218.22/927,520,236.85 = 158,284,649.42/x
  3. Step 3: Cross multiply
    618,347,218.22x = 927,520,236.85 × 158,284,649.42
  4. Step 4: Simplify right side
    618,347,218.22x = 146,812,215,523,267,968
  5. Step 5: Solve for x
    x = 146,812,215,523,267,968/618,347,218.22
  6. Step 6: Final answer
    x = 237,426,822.98

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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.