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Finding the Fourth Proportional to 38,171,311.20, 53,326,461.60 and 38,171,311.20

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Solution

The fourth proportional to 38,171,311.20, 53,326,461.60 and 38,171,311.20 is: 53,326,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,171,311.20 : 53,326,461.60 = 38,171,311.20 : x
  2. Step 2: Convert to fraction form
    38,171,311.20/53,326,461.60 = 38,171,311.20/x
  3. Step 3: Cross multiply
    38,171,311.20x = 53,326,461.60 × 38,171,311.20
  4. Step 4: Simplify right side
    38,171,311.20x = 2,035,540,960,928,450.25
  5. Step 5: Solve for x
    x = 2,035,540,960,928,450.25/38,171,311.20
  6. Step 6: Final answer
    x = 53,326,461.60

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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.