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Finding the Fourth Proportional to 274,881,775.80, 411,770,602.60 and 127,122,224.41

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Solution

The fourth proportional to 274,881,775.80, 411,770,602.60 and 127,122,224.41 is: 190,428,029.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,881,775.80 : 411,770,602.60 = 127,122,224.41 : x
  2. Step 2: Convert to fraction form
    274,881,775.80/411,770,602.60 = 127,122,224.41/x
  3. Step 3: Cross multiply
    274,881,775.80x = 411,770,602.60 × 127,122,224.41
  4. Step 4: Simplify right side
    274,881,775.80x = 52,345,194,949,158,128
  5. Step 5: Solve for x
    x = 52,345,194,949,158,128/274,881,775.80
  6. Step 6: Final answer
    x = 190,428,029.64

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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.