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Finding the Fourth Proportional to 173,897,999.90, 260,846,999.85 and 165,394,943.90

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Solution

The fourth proportional to 173,897,999.90, 260,846,999.85 and 165,394,943.90 is: 248,092,415.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,897,999.90 : 260,846,999.85 = 165,394,943.90 : x
  2. Step 2: Convert to fraction form
    173,897,999.90/260,846,999.85 = 165,394,943.90/x
  3. Step 3: Cross multiply
    173,897,999.90x = 260,846,999.85 × 165,394,943.90
  4. Step 4: Simplify right side
    173,897,999.90x = 43,142,774,906,674,056
  5. Step 5: Solve for x
    x = 43,142,774,906,674,056/173,897,999.90
  6. Step 6: Final answer
    x = 248,092,415.85

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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.