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Finding the Fourth Proportional to 54,652,057.20, 81,978,085.80 and 14,262,541.20

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Solution

The fourth proportional to 54,652,057.20, 81,978,085.80 and 14,262,541.20 is: 21,393,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,652,057.20 : 81,978,085.80 = 14,262,541.20 : x
  2. Step 2: Convert to fraction form
    54,652,057.20/81,978,085.80 = 14,262,541.20/x
  3. Step 3: Cross multiply
    54,652,057.20x = 81,978,085.80 × 14,262,541.20
  4. Step 4: Simplify right side
    54,652,057.20x = 1,169,215,826,219,634.75
  5. Step 5: Solve for x
    x = 1,169,215,826,219,634.75/54,652,057.20
  6. Step 6: Final answer
    x = 21,393,811.80

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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.