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Finding the Fourth Proportional to 280,635.99, 420,957.59 and 93,647.49

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Solution

The fourth proportional to 280,635.99, 420,957.59 and 93,647.49 is: 140,472.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,635.99 : 420,957.59 = 93,647.49 : x
  2. Step 2: Convert to fraction form
    280,635.99/420,957.59 = 93,647.49/x
  3. Step 3: Cross multiply
    280,635.99x = 420,957.59 × 93,647.49
  4. Step 4: Simplify right side
    280,635.99x = 39,421,621,231.71
  5. Step 5: Solve for x
    x = 39,421,621,231.71/280,635.99
  6. Step 6: Final answer
    x = 140,472.44

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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.