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Finding the Fourth Proportional to 454,563.29, 681,735.58 and 139,022.93

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Solution

The fourth proportional to 454,563.29, 681,735.58 and 139,022.93 is: 208,500.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,563.29 : 681,735.58 = 139,022.93 : x
  2. Step 2: Convert to fraction form
    454,563.29/681,735.58 = 139,022.93/x
  3. Step 3: Cross multiply
    454,563.29x = 681,735.58 × 139,022.93
  4. Step 4: Simplify right side
    454,563.29x = 94,776,875,764.95
  5. Step 5: Solve for x
    x = 94,776,875,764.95/454,563.29
  6. Step 6: Final answer
    x = 208,500.95

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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.