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Finding the Fourth Proportional to 199,756,808, 299,635,212 and 56,149,640

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Solution

The fourth proportional to 199,756,808, 299,635,212 and 56,149,640 is: 84,224,460

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,756,808 : 299,635,212 = 56,149,640 : x
  2. Step 2: Convert to fraction form
    199,756,808/299,635,212 = 56,149,640/x
  3. Step 3: Cross multiply
    199,756,808x = 299,635,212 × 56,149,640
  4. Step 4: Simplify right side
    199,756,808x = 16,824,409,285,123,680
  5. Step 5: Solve for x
    x = 16,824,409,285,123,680/199,756,808
  6. Step 6: Final answer
    x = 84,224,460

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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.