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Finding the Fourth Proportional to 56,214,218.70, 78,763,679.10 and 56,214,218.70

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Solution

The fourth proportional to 56,214,218.70, 78,763,679.10 and 56,214,218.70 is: 78,763,679.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,214,218.70 : 78,763,679.10 = 56,214,218.70 : x
  2. Step 2: Convert to fraction form
    56,214,218.70/78,763,679.10 = 56,214,218.70/x
  3. Step 3: Cross multiply
    56,214,218.70x = 78,763,679.10 × 56,214,218.70
  4. Step 4: Simplify right side
    56,214,218.70x = 4,427,638,682,544,019
  5. Step 5: Solve for x
    x = 4,427,638,682,544,019/56,214,218.70
  6. Step 6: Final answer
    x = 78,763,679.10

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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.