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Finding the Fourth Proportional to 115,344,007.70, 161,179,279.90 and 115,344,007.70

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Solution

The fourth proportional to 115,344,007.70, 161,179,279.90 and 115,344,007.70 is: 161,179,279.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,344,007.70 : 161,179,279.90 = 115,344,007.70 : x
  2. Step 2: Convert to fraction form
    115,344,007.70/161,179,279.90 = 115,344,007.70/x
  3. Step 3: Cross multiply
    115,344,007.70x = 161,179,279.90 × 115,344,007.70
  4. Step 4: Simplify right side
    115,344,007.70x = 18,591,064,101,866,056
  5. Step 5: Solve for x
    x = 18,591,064,101,866,056/115,344,007.70
  6. Step 6: Final answer
    x = 161,179,279.90

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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.