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Finding the Fourth Proportional to 81,408,004.80, 114,273,537.60 and 81,408,004.80

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Solution

The fourth proportional to 81,408,004.80, 114,273,537.60 and 81,408,004.80 is: 114,273,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,408,004.80 : 114,273,537.60 = 81,408,004.80 : x
  2. Step 2: Convert to fraction form
    81,408,004.80/114,273,537.60 = 81,408,004.80/x
  3. Step 3: Cross multiply
    81,408,004.80x = 114,273,537.60 × 81,408,004.80
  4. Step 4: Simplify right side
    81,408,004.80x = 9,302,780,697,453,780
  5. Step 5: Solve for x
    x = 9,302,780,697,453,780/81,408,004.80
  6. Step 6: Final answer
    x = 114,273,537.60

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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.