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Finding the Fourth Proportional to 348,773,648.78, 523,077,827.02 and 99,771,229.07

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Solution

The fourth proportional to 348,773,648.78, 523,077,827.02 and 99,771,229.07 is: 149,633,201.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,773,648.78 : 523,077,827.02 = 99,771,229.07 : x
  2. Step 2: Convert to fraction form
    348,773,648.78/523,077,827.02 = 99,771,229.07/x
  3. Step 3: Cross multiply
    348,773,648.78x = 523,077,827.02 × 99,771,229.07
  4. Step 4: Simplify right side
    348,773,648.78x = 52,188,117,700,146,976
  5. Step 5: Solve for x
    x = 52,188,117,700,146,976/348,773,648.78
  6. Step 6: Final answer
    x = 149,633,201.60

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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.