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Finding the Fourth Proportional to 176,734,792.80, 264,978,940.80 and 78,312,969.36

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Solution

The fourth proportional to 176,734,792.80, 264,978,940.80 and 78,312,969.36 is: 117,414,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,734,792.80 : 264,978,940.80 = 78,312,969.36 : x
  2. Step 2: Convert to fraction form
    176,734,792.80/264,978,940.80 = 78,312,969.36/x
  3. Step 3: Cross multiply
    176,734,792.80x = 264,978,940.80 × 78,312,969.36
  4. Step 4: Simplify right side
    176,734,792.80x = 20,751,287,671,915,656
  5. Step 5: Solve for x
    x = 20,751,287,671,915,656/176,734,792.80
  6. Step 6: Final answer
    x = 117,414,841.43

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