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Finding the Fourth Proportional to 47,389,624.30, 71,084,436.45 and 47,389,624.30

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Solution

The fourth proportional to 47,389,624.30, 71,084,436.45 and 47,389,624.30 is: 71,084,436.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,389,624.30 : 71,084,436.45 = 47,389,624.30 : x
  2. Step 2: Convert to fraction form
    47,389,624.30/71,084,436.45 = 47,389,624.30/x
  3. Step 3: Cross multiply
    47,389,624.30x = 71,084,436.45 × 47,389,624.30
  4. Step 4: Simplify right side
    47,389,624.30x = 3,368,664,736,942,725.50
  5. Step 5: Solve for x
    x = 3,368,664,736,942,725.50/47,389,624.30
  6. Step 6: Final answer
    x = 71,084,436.45

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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.