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Finding the Fourth Proportional to 211,104,003.40, 316,656,005.10 and 211,104,003.40

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Solution

The fourth proportional to 211,104,003.40, 316,656,005.10 and 211,104,003.40 is: 316,656,005.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,104,003.40 : 316,656,005.10 = 211,104,003.40 : x
  2. Step 2: Convert to fraction form
    211,104,003.40/316,656,005.10 = 211,104,003.40/x
  3. Step 3: Cross multiply
    211,104,003.40x = 316,656,005.10 × 211,104,003.40
  4. Step 4: Simplify right side
    211,104,003.40x = 66,847,350,377,260,824
  5. Step 5: Solve for x
    x = 66,847,350,377,260,824/211,104,003.40
  6. Step 6: Final answer
    x = 316,656,005.10

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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.