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Finding the Fourth Proportional to 56,652,016.80, 84,978,025.20 and 52,306,010.40

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Solution

The fourth proportional to 56,652,016.80, 84,978,025.20 and 52,306,010.40 is: 78,459,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,652,016.80 : 84,978,025.20 = 52,306,010.40 : x
  2. Step 2: Convert to fraction form
    56,652,016.80/84,978,025.20 = 52,306,010.40/x
  3. Step 3: Cross multiply
    56,652,016.80x = 84,978,025.20 × 52,306,010.40
  4. Step 4: Simplify right side
    56,652,016.80x = 4,444,861,469,882,662
  5. Step 5: Solve for x
    x = 4,444,861,469,882,662/56,652,016.80
  6. Step 6: Final answer
    x = 78,459,015.60

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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.