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Finding the Fourth Proportional to 124,485,379.20, 186,392,145.60 and 124,485,379.20

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Solution

The fourth proportional to 124,485,379.20, 186,392,145.60 and 124,485,379.20 is: 186,392,145.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,485,379.20 : 186,392,145.60 = 124,485,379.20 : x
  2. Step 2: Convert to fraction form
    124,485,379.20/186,392,145.60 = 124,485,379.20/x
  3. Step 3: Cross multiply
    124,485,379.20x = 186,392,145.60 × 124,485,379.20
  4. Step 4: Simplify right side
    124,485,379.20x = 23,203,096,924,917,612
  5. Step 5: Solve for x
    x = 23,203,096,924,917,612/124,485,379.20
  6. Step 6: Final answer
    x = 186,392,145.60

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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.