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Finding the Fourth Proportional to 67,147,069.80, 100,720,604.70 and 46,739,735.40

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Solution

The fourth proportional to 67,147,069.80, 100,720,604.70 and 46,739,735.40 is: 70,109,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,147,069.80 : 100,720,604.70 = 46,739,735.40 : x
  2. Step 2: Convert to fraction form
    67,147,069.80/100,720,604.70 = 46,739,735.40/x
  3. Step 3: Cross multiply
    67,147,069.80x = 100,720,604.70 × 46,739,735.40
  4. Step 4: Simplify right side
    67,147,069.80x = 4,707,654,413,005,996
  5. Step 5: Solve for x
    x = 4,707,654,413,005,996/67,147,069.80
  6. Step 6: Final answer
    x = 70,109,603.10

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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.