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Finding the Fourth Proportional to 261,648,273.60, 391,622,104.80 and 261,648,273.60

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Solution

The fourth proportional to 261,648,273.60, 391,622,104.80 and 261,648,273.60 is: 391,622,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,648,273.60 : 391,622,104.80 = 261,648,273.60 : x
  2. Step 2: Convert to fraction form
    261,648,273.60/391,622,104.80 = 261,648,273.60/x
  3. Step 3: Cross multiply
    261,648,273.60x = 391,622,104.80 × 261,648,273.60
  4. Step 4: Simplify right side
    261,648,273.60x = 102,467,247,624,518,272
  5. Step 5: Solve for x
    x = 102,467,247,624,518,272/261,648,273.60
  6. Step 6: Final answer
    x = 391,622,104.80

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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.