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Finding the Fourth Proportional to 87,996,399.80, 123,450,051.40 and 87,996,399.80

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Solution

The fourth proportional to 87,996,399.80, 123,450,051.40 and 87,996,399.80 is: 123,450,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,996,399.80 : 123,450,051.40 = 87,996,399.80 : x
  2. Step 2: Convert to fraction form
    87,996,399.80/123,450,051.40 = 87,996,399.80/x
  3. Step 3: Cross multiply
    87,996,399.80x = 123,450,051.40 × 87,996,399.80
  4. Step 4: Simplify right side
    87,996,399.80x = 10,863,160,078,324,950
  5. Step 5: Solve for x
    x = 10,863,160,078,324,950/87,996,399.80
  6. Step 6: Final answer
    x = 123,450,051.40

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1.5x scale

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.