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Finding the Fourth Proportional to 118,341,007.80, 177,511,511.72 and 118,341,007.80

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Solution

The fourth proportional to 118,341,007.80, 177,511,511.72 and 118,341,007.80 is: 177,511,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,341,007.80 : 177,511,511.72 = 118,341,007.80 : x
  2. Step 2: Convert to fraction form
    118,341,007.80/177,511,511.72 = 118,341,007.80/x
  3. Step 3: Cross multiply
    118,341,007.80x = 177,511,511.72 × 118,341,007.80
  4. Step 4: Simplify right side
    118,341,007.80x = 21,006,891,192,454,608
  5. Step 5: Solve for x
    x = 21,006,891,192,454,608/118,341,007.80
  6. Step 6: Final answer
    x = 177,511,511.72

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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.