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Finding the Fourth Proportional to 143,340.03, 197,792.04 and 78,798.62

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Solution

The fourth proportional to 143,340.03, 197,792.04 and 78,798.62 is: 108,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,340.03 : 197,792.04 = 78,798.62 : x
  2. Step 2: Convert to fraction form
    143,340.03/197,792.04 = 78,798.62/x
  3. Step 3: Cross multiply
    143,340.03x = 197,792.04 × 78,798.62
  4. Step 4: Simplify right side
    143,340.03x = 15,585,739,798.98
  5. Step 5: Solve for x
    x = 15,585,739,798.98/143,340.03
  6. Step 6: Final answer
    x = 108,732.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.