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Finding the Fourth Proportional to 88,946.64, 133,485.54 and 71,625.60

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Solution

The fourth proportional to 88,946.64, 133,485.54 and 71,625.60 is: 107,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,946.64 : 133,485.54 = 71,625.60 : x
  2. Step 2: Convert to fraction form
    88,946.64/133,485.54 = 71,625.60/x
  3. Step 3: Cross multiply
    88,946.64x = 133,485.54 × 71,625.60
  4. Step 4: Simplify right side
    88,946.64x = 9,560,981,893.82
  5. Step 5: Solve for x
    x = 9,560,981,893.82/88,946.64
  6. Step 6: Final answer
    x = 107,491.21

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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.