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Finding the Fourth Proportional to 91,130.56, 125,811.84 and 59,283.52

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Solution

The fourth proportional to 91,130.56, 125,811.84 and 59,283.52 is: 81,844.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,130.56 : 125,811.84 = 59,283.52 : x
  2. Step 2: Convert to fraction form
    91,130.56/125,811.84 = 59,283.52/x
  3. Step 3: Cross multiply
    91,130.56x = 125,811.84 × 59,283.52
  4. Step 4: Simplify right side
    91,130.56x = 7,458,568,732.88
  5. Step 5: Solve for x
    x = 7,458,568,732.88/91,130.56
  6. Step 6: Final answer
    x = 81,844.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.