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Finding the Fourth Proportional to 68,954,554.80, 103,379,344.20 and 34,900,340.40

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Solution

The fourth proportional to 68,954,554.80, 103,379,344.20 and 34,900,340.40 is: 52,323,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,954,554.80 : 103,379,344.20 = 34,900,340.40 : x
  2. Step 2: Convert to fraction form
    68,954,554.80/103,379,344.20 = 34,900,340.40/x
  3. Step 3: Cross multiply
    68,954,554.80x = 103,379,344.20 × 34,900,340.40
  4. Step 4: Simplify right side
    68,954,554.80x = 3,607,974,302,908,765.50
  5. Step 5: Solve for x
    x = 3,607,974,302,908,765.50/68,954,554.80
  6. Step 6: Final answer
    x = 52,323,944.57

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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.