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Finding the Fourth Proportional to 245,828,719.20, 368,743,078.80 and 245,828,719.20

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Solution

The fourth proportional to 245,828,719.20, 368,743,078.80 and 245,828,719.20 is: 368,743,078.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,828,719.20 : 368,743,078.80 = 245,828,719.20 : x
  2. Step 2: Convert to fraction form
    245,828,719.20/368,743,078.80 = 245,828,719.20/x
  3. Step 3: Cross multiply
    245,828,719.20x = 368,743,078.80 × 245,828,719.20
  4. Step 4: Simplify right side
    245,828,719.20x = 90,647,638,775,268,672
  5. Step 5: Solve for x
    x = 90,647,638,775,268,672/245,828,719.20
  6. Step 6: Final answer
    x = 368,743,078.80

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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.