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Finding the Fourth Proportional to 76,669.60, 114,896.40 and 60,901.60

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Solution

The fourth proportional to 76,669.60, 114,896.40 and 60,901.60 is: 91,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,669.60 : 114,896.40 = 60,901.60 : x
  2. Step 2: Convert to fraction form
    76,669.60/114,896.40 = 60,901.60/x
  3. Step 3: Cross multiply
    76,669.60x = 114,896.40 × 60,901.60
  4. Step 4: Simplify right side
    76,669.60x = 6,997,374,594.24
  5. Step 5: Solve for x
    x = 6,997,374,594.24/76,669.60
  6. Step 6: Final answer
    x = 91,266.61

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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.