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Finding the Fourth Proportional to 127,505,079.90, 178,847,234.10 and 127,505,079.90

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Solution

The fourth proportional to 127,505,079.90, 178,847,234.10 and 127,505,079.90 is: 178,847,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,505,079.90 : 178,847,234.10 = 127,505,079.90 : x
  2. Step 2: Convert to fraction form
    127,505,079.90/178,847,234.10 = 127,505,079.90/x
  3. Step 3: Cross multiply
    127,505,079.90x = 178,847,234.10 × 127,505,079.90
  4. Step 4: Simplify right side
    127,505,079.90x = 22,803,930,873,814,504
  5. Step 5: Solve for x
    x = 22,803,930,873,814,504/127,505,079.90
  6. Step 6: Final answer
    x = 178,847,234.10

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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.