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Finding the Fourth Proportional to 126,181,806.80, 176,909,621.20 and 126,181,806.80

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Solution

The fourth proportional to 126,181,806.80, 176,909,621.20 and 126,181,806.80 is: 176,909,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,181,806.80 : 176,909,621.20 = 126,181,806.80 : x
  2. Step 2: Convert to fraction form
    126,181,806.80/176,909,621.20 = 126,181,806.80/x
  3. Step 3: Cross multiply
    126,181,806.80x = 176,909,621.20 × 126,181,806.80
  4. Step 4: Simplify right side
    126,181,806.80x = 22,322,775,643,319,584
  5. Step 5: Solve for x
    x = 22,322,775,643,319,584/126,181,806.80
  6. Step 6: Final answer
    x = 176,909,621.20

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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.