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Finding the Fourth Proportional to 89,339,964.70, 124,820,858.90 and 89,339,964.70

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Solution

The fourth proportional to 89,339,964.70, 124,820,858.90 and 89,339,964.70 is: 124,820,858.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,339,964.70 : 124,820,858.90 = 89,339,964.70 : x
  2. Step 2: Convert to fraction form
    89,339,964.70/124,820,858.90 = 89,339,964.70/x
  3. Step 3: Cross multiply
    89,339,964.70x = 124,820,858.90 × 89,339,964.70
  4. Step 4: Simplify right side
    89,339,964.70x = 11,151,491,127,949,682
  5. Step 5: Solve for x
    x = 11,151,491,127,949,682/89,339,964.70
  6. Step 6: Final answer
    x = 124,820,858.90

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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.