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Finding the Fourth Proportional to 98,575.96, 136,037.64 and 54,969.52

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Solution

The fourth proportional to 98,575.96, 136,037.64 and 54,969.52 is: 75,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,575.96 : 136,037.64 = 54,969.52 : x
  2. Step 2: Convert to fraction form
    98,575.96/136,037.64 = 54,969.52/x
  3. Step 3: Cross multiply
    98,575.96x = 136,037.64 × 54,969.52
  4. Step 4: Simplify right side
    98,575.96x = 7,477,923,772.73
  5. Step 5: Solve for x
    x = 7,477,923,772.73/98,575.96
  6. Step 6: Final answer
    x = 75,859.51

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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.