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Finding the Fourth Proportional to 36,905,986.20, 55,358,979.30 and 36,905,986.20

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Solution

The fourth proportional to 36,905,986.20, 55,358,979.30 and 36,905,986.20 is: 55,358,979.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,905,986.20 : 55,358,979.30 = 36,905,986.20 : x
  2. Step 2: Convert to fraction form
    36,905,986.20/55,358,979.30 = 36,905,986.20/x
  3. Step 3: Cross multiply
    36,905,986.20x = 55,358,979.30 × 36,905,986.20
  4. Step 4: Simplify right side
    36,905,986.20x = 2,043,077,726,091,885.75
  5. Step 5: Solve for x
    x = 2,043,077,726,091,885.75/36,905,986.20
  6. Step 6: Final answer
    x = 55,358,979.30

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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.