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Finding the Fourth Proportional to 118,341,012.80, 177,511,519.20 and 118,341,012.80

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Solution

The fourth proportional to 118,341,012.80, 177,511,519.20 and 118,341,012.80 is: 177,511,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,341,012.80 : 177,511,519.20 = 118,341,012.80 : x
  2. Step 2: Convert to fraction form
    118,341,012.80/177,511,519.20 = 118,341,012.80/x
  3. Step 3: Cross multiply
    118,341,012.80x = 177,511,519.20 × 118,341,012.80
  4. Step 4: Simplify right side
    118,341,012.80x = 21,006,892,965,794,644
  5. Step 5: Solve for x
    x = 21,006,892,965,794,644/118,341,012.80
  6. Step 6: Final answer
    x = 177,511,519.20

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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.