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Finding the Fourth Proportional to 325,953.13, 488,806.81 and 136,426.63

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Solution

The fourth proportional to 325,953.13, 488,806.81 and 136,426.63 is: 204,588.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,953.13 : 488,806.81 = 136,426.63 : x
  2. Step 2: Convert to fraction form
    325,953.13/488,806.81 = 136,426.63/x
  3. Step 3: Cross multiply
    325,953.13x = 488,806.81 × 136,426.63
  4. Step 4: Simplify right side
    325,953.13x = 66,686,264,246.27
  5. Step 5: Solve for x
    x = 66,686,264,246.27/325,953.13
  6. Step 6: Final answer
    x = 204,588.51

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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.