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Finding the Fourth Proportional to 83,796.93, 125,628.71 and 30,480.57

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Solution

The fourth proportional to 83,796.93, 125,628.71 and 30,480.57 is: 45,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,796.93 : 125,628.71 = 30,480.57 : x
  2. Step 2: Convert to fraction form
    83,796.93/125,628.71 = 30,480.57/x
  3. Step 3: Cross multiply
    83,796.93x = 125,628.71 × 30,480.57
  4. Step 4: Simplify right side
    83,796.93x = 3,829,234,536.76
  5. Step 5: Solve for x
    x = 3,829,234,536.76/83,796.93
  6. Step 6: Final answer
    x = 45,696.60

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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.