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Finding the Fourth Proportional to 213,591,256.30, 299,708,003.30 and 213,591,256.30

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Solution

The fourth proportional to 213,591,256.30, 299,708,003.30 and 213,591,256.30 is: 299,708,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,591,256.30 : 299,708,003.30 = 213,591,256.30 : x
  2. Step 2: Convert to fraction form
    213,591,256.30/299,708,003.30 = 213,591,256.30/x
  3. Step 3: Cross multiply
    213,591,256.30x = 299,708,003.30 × 213,591,256.30
  4. Step 4: Simplify right side
    213,591,256.30x = 64,015,008,948,011,552
  5. Step 5: Solve for x
    x = 64,015,008,948,011,552/213,591,256.30
  6. Step 6: Final answer
    x = 299,708,003.30

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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.