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Finding the Fourth Proportional to 556,741.40, 835,104.81 and 136,020.92

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Solution

The fourth proportional to 556,741.40, 835,104.81 and 136,020.92 is: 204,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,741.40 : 835,104.81 = 136,020.92 : x
  2. Step 2: Convert to fraction form
    556,741.40/835,104.81 = 136,020.92/x
  3. Step 3: Cross multiply
    556,741.40x = 835,104.81 × 136,020.92
  4. Step 4: Simplify right side
    556,741.40x = 113,591,725,202.09
  5. Step 5: Solve for x
    x = 113,591,725,202.09/556,741.40
  6. Step 6: Final answer
    x = 204,029.60

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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.