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Finding the Fourth Proportional to 99,058,383.90, 138,968,715.60 and 99,058,383.90

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Solution

The fourth proportional to 99,058,383.90, 138,968,715.60 and 99,058,383.90 is: 138,968,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,058,383.90 : 138,968,715.60 = 99,058,383.90 : x
  2. Step 2: Convert to fraction form
    99,058,383.90/138,968,715.60 = 99,058,383.90/x
  3. Step 3: Cross multiply
    99,058,383.90x = 138,968,715.60 × 99,058,383.90
  4. Step 4: Simplify right side
    99,058,383.90x = 13,766,016,379,994,720
  5. Step 5: Solve for x
    x = 13,766,016,379,994,720/99,058,383.90
  6. Step 6: Final answer
    x = 138,968,715.60

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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.