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Finding the Fourth Proportional to 69,461.60, 104,046.60 and 57,797.60

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Solution

The fourth proportional to 69,461.60, 104,046.60 and 57,797.60 is: 86,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,461.60 : 104,046.60 = 57,797.60 : x
  2. Step 2: Convert to fraction form
    69,461.60/104,046.60 = 57,797.60/x
  3. Step 3: Cross multiply
    69,461.60x = 104,046.60 × 57,797.60
  4. Step 4: Simplify right side
    69,461.60x = 6,013,643,768.16
  5. Step 5: Solve for x
    x = 6,013,643,768.16/69,461.60
  6. Step 6: Final answer
    x = 86,575.08

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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.