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Finding the Fourth Proportional to 211,320,214.90, 295,243,639.10 and 211,320,214.90

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Solution

The fourth proportional to 211,320,214.90, 295,243,639.10 and 211,320,214.90 is: 295,243,639.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,320,214.90 : 295,243,639.10 = 211,320,214.90 : x
  2. Step 2: Convert to fraction form
    211,320,214.90/295,243,639.10 = 211,320,214.90/x
  3. Step 3: Cross multiply
    211,320,214.90x = 295,243,639.10 × 211,320,214.90
  4. Step 4: Simplify right side
    211,320,214.90x = 62,390,949,262,470,048
  5. Step 5: Solve for x
    x = 62,390,949,262,470,048/211,320,214.90
  6. Step 6: Final answer
    x = 295,243,639.10

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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.