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Finding the Fourth Proportional to 126,181,812.30, 176,909,628.90 and 126,181,812.30

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Solution

The fourth proportional to 126,181,812.30, 176,909,628.90 and 126,181,812.30 is: 176,909,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,181,812.30 : 176,909,628.90 = 126,181,812.30 : x
  2. Step 2: Convert to fraction form
    126,181,812.30/176,909,628.90 = 126,181,812.30/x
  3. Step 3: Cross multiply
    126,181,812.30x = 176,909,628.90 × 126,181,812.30
  4. Step 4: Simplify right side
    126,181,812.30x = 22,322,777,587,922,456
  5. Step 5: Solve for x
    x = 22,322,777,587,922,456/126,181,812.30
  6. Step 6: Final answer
    x = 176,909,628.90

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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.