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Finding the Fourth Proportional to 168,028,843.20, 251,645,133.60 and 168,028,843.20

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Solution

The fourth proportional to 168,028,843.20, 251,645,133.60 and 168,028,843.20 is: 251,645,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,028,843.20 : 251,645,133.60 = 168,028,843.20 : x
  2. Step 2: Convert to fraction form
    168,028,843.20/251,645,133.60 = 168,028,843.20/x
  3. Step 3: Cross multiply
    168,028,843.20x = 251,645,133.60 × 168,028,843.20
  4. Step 4: Simplify right side
    168,028,843.20x = 42,283,640,695,717,448
  5. Step 5: Solve for x
    x = 42,283,640,695,717,448/168,028,843.20
  6. Step 6: Final answer
    x = 251,645,133.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.