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Finding the Fourth Proportional to 54,288,972.90, 81,433,459.35 and 54,288,972.90

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Solution

The fourth proportional to 54,288,972.90, 81,433,459.35 and 54,288,972.90 is: 81,433,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,288,972.90 : 81,433,459.35 = 54,288,972.90 : x
  2. Step 2: Convert to fraction form
    54,288,972.90/81,433,459.35 = 54,288,972.90/x
  3. Step 3: Cross multiply
    54,288,972.90x = 81,433,459.35 × 54,288,972.90
  4. Step 4: Simplify right side
    54,288,972.90x = 4,420,938,867,805,401
  5. Step 5: Solve for x
    x = 4,420,938,867,805,401/54,288,972.90
  6. Step 6: Final answer
    x = 81,433,459.35

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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.