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Finding the Fourth Proportional to 12,290,466.90, 17,174,767.20 and 12,290,466.90

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Solution

The fourth proportional to 12,290,466.90, 17,174,767.20 and 12,290,466.90 is: 17,174,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,466.90 : 17,174,767.20 = 12,290,466.90 : x
  2. Step 2: Convert to fraction form
    12,290,466.90/17,174,767.20 = 12,290,466.90/x
  3. Step 3: Cross multiply
    12,290,466.90x = 17,174,767.20 × 12,290,466.90
  4. Step 4: Simplify right side
    12,290,466.90x = 211,085,907,786,805.69
  5. Step 5: Solve for x
    x = 211,085,907,786,805.69/12,290,466.90
  6. Step 6: Final answer
    x = 17,174,767.20

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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.