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Finding the Fourth Proportional to 254,653,406.70, 381,980,110.05 and 254,653,406.70

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Solution

The fourth proportional to 254,653,406.70, 381,980,110.05 and 254,653,406.70 is: 381,980,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,653,406.70 : 381,980,110.05 = 254,653,406.70 : x
  2. Step 2: Convert to fraction form
    254,653,406.70/381,980,110.05 = 254,653,406.70/x
  3. Step 3: Cross multiply
    254,653,406.70x = 381,980,110.05 × 254,653,406.70
  4. Step 4: Simplify right side
    254,653,406.70x = 97,272,536,315,873,408
  5. Step 5: Solve for x
    x = 97,272,536,315,873,408/254,653,406.70
  6. Step 6: Final answer
    x = 381,980,110.05

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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.