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Finding the Fourth Proportional to 268,385.40, 402,578.10 and 110,532.60

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Solution

The fourth proportional to 268,385.40, 402,578.10 and 110,532.60 is: 165,798.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,385.40 : 402,578.10 = 110,532.60 : x
  2. Step 2: Convert to fraction form
    268,385.40/402,578.10 = 110,532.60/x
  3. Step 3: Cross multiply
    268,385.40x = 402,578.10 × 110,532.60
  4. Step 4: Simplify right side
    268,385.40x = 44,498,004,096.06
  5. Step 5: Solve for x
    x = 44,498,004,096.06/268,385.40
  6. Step 6: Final answer
    x = 165,798.90

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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.