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Finding the Fourth Proportional to 174,978.40, 262,597.20 and 69,872.80

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Solution

The fourth proportional to 174,978.40, 262,597.20 and 69,872.80 is: 104,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,978.40 : 262,597.20 = 69,872.80 : x
  2. Step 2: Convert to fraction form
    174,978.40/262,597.20 = 69,872.80/x
  3. Step 3: Cross multiply
    174,978.40x = 262,597.20 × 69,872.80
  4. Step 4: Simplify right side
    174,978.40x = 18,348,401,636.16
  5. Step 5: Solve for x
    x = 18,348,401,636.16/174,978.40
  6. Step 6: Final answer
    x = 104,860.95

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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.