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Finding the Fourth Proportional to 57,003,422.40, 79,704,014.40 and 57,003,422.40

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Solution

The fourth proportional to 57,003,422.40, 79,704,014.40 and 57,003,422.40 is: 79,704,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,003,422.40 : 79,704,014.40 = 57,003,422.40 : x
  2. Step 2: Convert to fraction form
    57,003,422.40/79,704,014.40 = 57,003,422.40/x
  3. Step 3: Cross multiply
    57,003,422.40x = 79,704,014.40 × 57,003,422.40
  4. Step 4: Simplify right side
    57,003,422.40x = 4,543,401,599,818,883
  5. Step 5: Solve for x
    x = 4,543,401,599,818,883/57,003,422.40
  6. Step 6: Final answer
    x = 79,704,014.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.