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Finding the Fourth Proportional to 78,608,021.04, 117,978,283.08 and 33,202,401.84

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Solution

The fourth proportional to 78,608,021.04, 117,978,283.08 and 33,202,401.84 is: 49,831,586.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,608,021.04 : 117,978,283.08 = 33,202,401.84 : x
  2. Step 2: Convert to fraction form
    78,608,021.04/117,978,283.08 = 33,202,401.84/x
  3. Step 3: Cross multiply
    78,608,021.04x = 117,978,283.08 × 33,202,401.84
  4. Step 4: Simplify right side
    78,608,021.04x = 3,917,162,363,215,433
  5. Step 5: Solve for x
    x = 3,917,162,363,215,433/78,608,021.04
  6. Step 6: Final answer
    x = 49,831,586.03

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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.