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Finding the Fourth Proportional to 45,362,078.70, 68,043,118.10 and 45,362,078.70

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Solution

The fourth proportional to 45,362,078.70, 68,043,118.10 and 45,362,078.70 is: 68,043,118.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,362,078.70 : 68,043,118.10 = 45,362,078.70 : x
  2. Step 2: Convert to fraction form
    45,362,078.70/68,043,118.10 = 45,362,078.70/x
  3. Step 3: Cross multiply
    45,362,078.70x = 68,043,118.10 × 45,362,078.70
  4. Step 4: Simplify right side
    45,362,078.70x = 3,086,577,278,018,784
  5. Step 5: Solve for x
    x = 3,086,577,278,018,784/45,362,078.70
  6. Step 6: Final answer
    x = 68,043,118.10

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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.