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Finding the Fourth Proportional to 454,604.73, 681,882.54 and 139,061.67

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Solution

The fourth proportional to 454,604.73, 681,882.54 and 139,061.67 is: 208,584.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,604.73 : 681,882.54 = 139,061.67 : x
  2. Step 2: Convert to fraction form
    454,604.73/681,882.54 = 139,061.67/x
  3. Step 3: Cross multiply
    454,604.73x = 681,882.54 × 139,061.67
  4. Step 4: Simplify right side
    454,604.73x = 94,823,721,346.83
  5. Step 5: Solve for x
    x = 94,823,721,346.83/454,604.73
  6. Step 6: Final answer
    x = 208,584.99

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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.