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Finding the Fourth Proportional to 211,320,211.90, 295,243,634.90 and 211,320,211.90

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Solution

The fourth proportional to 211,320,211.90, 295,243,634.90 and 211,320,211.90 is: 295,243,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,320,211.90 : 295,243,634.90 = 211,320,211.90 : x
  2. Step 2: Convert to fraction form
    211,320,211.90/295,243,634.90 = 211,320,211.90/x
  3. Step 3: Cross multiply
    211,320,211.90x = 295,243,634.90 × 211,320,211.90
  4. Step 4: Simplify right side
    211,320,211.90x = 62,390,947,489,194,232
  5. Step 5: Solve for x
    x = 62,390,947,489,194,232/211,320,211.90
  6. Step 6: Final answer
    x = 295,243,634.90

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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.