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Finding the Fourth Proportional to 69,219,098.20, 103,828,647.30 and 69,219,098.20

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Solution

The fourth proportional to 69,219,098.20, 103,828,647.30 and 69,219,098.20 is: 103,828,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,219,098.20 : 103,828,647.30 = 69,219,098.20 : x
  2. Step 2: Convert to fraction form
    69,219,098.20/103,828,647.30 = 69,219,098.20/x
  3. Step 3: Cross multiply
    69,219,098.20x = 103,828,647.30 × 69,219,098.20
  4. Step 4: Simplify right side
    69,219,098.20x = 7,186,925,333,431,865
  5. Step 5: Solve for x
    x = 7,186,925,333,431,865/69,219,098.20
  6. Step 6: Final answer
    x = 103,828,647.30

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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.