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Finding the Fourth Proportional to 7,137,908.70, 10,710,491.85 and 4,743,419.10

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Solution

The fourth proportional to 7,137,908.70, 10,710,491.85 and 4,743,419.10 is: 7,117,540.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137,908.70 : 10,710,491.85 = 4,743,419.10 : x
  2. Step 2: Convert to fraction form
    7,137,908.70/10,710,491.85 = 4,743,419.10/x
  3. Step 3: Cross multiply
    7,137,908.70x = 10,710,491.85 × 4,743,419.10
  4. Step 4: Simplify right side
    7,137,908.70x = 50,804,351,611,684.33
  5. Step 5: Solve for x
    x = 50,804,351,611,684.33/7,137,908.70
  6. Step 6: Final answer
    x = 7,117,540.13

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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.