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Finding the Fourth Proportional to 45,993,978.20, 68,990,967.30 and 43,754,490.20

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Solution

The fourth proportional to 45,993,978.20, 68,990,967.30 and 43,754,490.20 is: 65,631,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,993,978.20 : 68,990,967.30 = 43,754,490.20 : x
  2. Step 2: Convert to fraction form
    45,993,978.20/68,990,967.30 = 43,754,490.20/x
  3. Step 3: Cross multiply
    45,993,978.20x = 68,990,967.30 × 43,754,490.20
  4. Step 4: Simplify right side
    45,993,978.20x = 3,018,664,602,616,370.50
  5. Step 5: Solve for x
    x = 3,018,664,602,616,370.50/45,993,978.20
  6. Step 6: Final answer
    x = 65,631,735.30

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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.