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Finding the Fourth Proportional to 186,702,987.90, 280,054,481.85 and 186,702,987.90

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Solution

The fourth proportional to 186,702,987.90, 280,054,481.85 and 186,702,987.90 is: 280,054,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,702,987.90 : 280,054,481.85 = 186,702,987.90 : x
  2. Step 2: Convert to fraction form
    186,702,987.90/280,054,481.85 = 186,702,987.90/x
  3. Step 3: Cross multiply
    186,702,987.90x = 280,054,481.85 × 186,702,987.90
  4. Step 4: Simplify right side
    186,702,987.90x = 52,287,008,536,181,328
  5. Step 5: Solve for x
    x = 52,287,008,536,181,328/186,702,987.90
  6. Step 6: Final answer
    x = 280,054,481.85

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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.