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Finding the Fourth Proportional to 30,760,105.20, 46,140,157.80 and 30,760,105.20

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Solution

The fourth proportional to 30,760,105.20, 46,140,157.80 and 30,760,105.20 is: 46,140,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,760,105.20 : 46,140,157.80 = 30,760,105.20 : x
  2. Step 2: Convert to fraction form
    30,760,105.20/46,140,157.80 = 30,760,105.20/x
  3. Step 3: Cross multiply
    30,760,105.20x = 46,140,157.80 × 30,760,105.20
  4. Step 4: Simplify right side
    30,760,105.20x = 1,419,276,107,872,600.50
  5. Step 5: Solve for x
    x = 1,419,276,107,872,600.50/30,760,105.20
  6. Step 6: Final answer
    x = 46,140,157.80

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1.5x scale

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.