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Finding the Fourth Proportional to 325,550,259.60, 488,892,259.80 and 172,495,251.60

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Solution

The fourth proportional to 325,550,259.60, 488,892,259.80 and 172,495,251.60 is: 259,043,237.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,550,259.60 : 488,892,259.80 = 172,495,251.60 : x
  2. Step 2: Convert to fraction form
    325,550,259.60/488,892,259.80 = 172,495,251.60/x
  3. Step 3: Cross multiply
    325,550,259.60x = 488,892,259.80 × 172,495,251.60
  4. Step 4: Simplify right side
    325,550,259.60x = 84,331,593,359,493,568
  5. Step 5: Solve for x
    x = 84,331,593,359,493,568/325,550,259.60
  6. Step 6: Final answer
    x = 259,043,237.94

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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.