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Finding the Fourth Proportional to 262,858,706.60, 394,512,008.70 and 117,515,935.40

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Solution

The fourth proportional to 262,858,706.60, 394,512,008.70 and 117,515,935.40 is: 176,374,023.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,858,706.60 : 394,512,008.70 = 117,515,935.40 : x
  2. Step 2: Convert to fraction form
    262,858,706.60/394,512,008.70 = 117,515,935.40/x
  3. Step 3: Cross multiply
    262,858,706.60x = 394,512,008.70 × 117,515,935.40
  4. Step 4: Simplify right side
    262,858,706.60x = 46,361,447,728,913,440
  5. Step 5: Solve for x
    x = 46,361,447,728,913,440/262,858,706.60
  6. Step 6: Final answer
    x = 176,374,023.63

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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.