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Finding the Fourth Proportional to 89,339,965.70, 124,820,860.30 and 89,339,965.70

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Solution

The fourth proportional to 89,339,965.70, 124,820,860.30 and 89,339,965.70 is: 124,820,860.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,339,965.70 : 124,820,860.30 = 89,339,965.70 : x
  2. Step 2: Convert to fraction form
    89,339,965.70/124,820,860.30 = 89,339,965.70/x
  3. Step 3: Cross multiply
    89,339,965.70x = 124,820,860.30 × 89,339,965.70
  4. Step 4: Simplify right side
    89,339,965.70x = 11,151,491,377,846,492
  5. Step 5: Solve for x
    x = 11,151,491,377,846,492/89,339,965.70
  6. Step 6: Final answer
    x = 124,820,860.30

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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.