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Finding the Fourth Proportional to 325,969,287.60, 488,785,969.80 and 121,392,058.80

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Solution

The fourth proportional to 325,969,287.60, 488,785,969.80 and 121,392,058.80 is: 182,025,538.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,969,287.60 : 488,785,969.80 = 121,392,058.80 : x
  2. Step 2: Convert to fraction form
    325,969,287.60/488,785,969.80 = 121,392,058.80/x
  3. Step 3: Cross multiply
    325,969,287.60x = 488,785,969.80 × 121,392,058.80
  4. Step 4: Simplify right side
    325,969,287.60x = 59,334,735,186,576,624
  5. Step 5: Solve for x
    x = 59,334,735,186,576,624/325,969,287.60
  6. Step 6: Final answer
    x = 182,025,538.74

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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.