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Finding the Fourth Proportional to 295,662,015.20, 443,493,022.80 and 80,251,263.20

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Solution

The fourth proportional to 295,662,015.20, 443,493,022.80 and 80,251,263.20 is: 120,376,894.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,662,015.20 : 443,493,022.80 = 80,251,263.20 : x
  2. Step 2: Convert to fraction form
    295,662,015.20/443,493,022.80 = 80,251,263.20/x
  3. Step 3: Cross multiply
    295,662,015.20x = 443,493,022.80 × 80,251,263.20
  4. Step 4: Simplify right side
    295,662,015.20x = 35,590,875,300,086,404
  5. Step 5: Solve for x
    x = 35,590,875,300,086,404/295,662,015.20
  6. Step 6: Final answer
    x = 120,376,894.80

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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.