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Finding the Fourth Proportional to 70,475,929.60, 105,682,401.60 and 27,330,793.60

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Solution

The fourth proportional to 70,475,929.60, 105,682,401.60 and 27,330,793.60 is: 40,983,977.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,475,929.60 : 105,682,401.60 = 27,330,793.60 : x
  2. Step 2: Convert to fraction form
    70,475,929.60/105,682,401.60 = 27,330,793.60/x
  3. Step 3: Cross multiply
    70,475,929.60x = 105,682,401.60 × 27,330,793.60
  4. Step 4: Simplify right side
    70,475,929.60x = 2,888,383,905,281,910
  5. Step 5: Solve for x
    x = 2,888,383,905,281,910/70,475,929.60
  6. Step 6: Final answer
    x = 40,983,977.39

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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.