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Finding the Fourth Proportional to 68,130,015.40, 102,195,023.10 and 68,130,015.40

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Solution

The fourth proportional to 68,130,015.40, 102,195,023.10 and 68,130,015.40 is: 102,195,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130,015.40 : 102,195,023.10 = 68,130,015.40 : x
  2. Step 2: Convert to fraction form
    68,130,015.40/102,195,023.10 = 68,130,015.40/x
  3. Step 3: Cross multiply
    68,130,015.40x = 102,195,023.10 × 68,130,015.40
  4. Step 4: Simplify right side
    68,130,015.40x = 6,962,548,497,606,356
  5. Step 5: Solve for x
    x = 6,962,548,497,606,356/68,130,015.40
  6. Step 6: Final answer
    x = 102,195,023.10

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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.