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Finding the Fourth Proportional to 88,561.60, 133,047.20 and 60,913.60

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Solution

The fourth proportional to 88,561.60, 133,047.20 and 60,913.60 is: 91,511.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,561.60 : 133,047.20 = 60,913.60 : x
  2. Step 2: Convert to fraction form
    88,561.60/133,047.20 = 60,913.60/x
  3. Step 3: Cross multiply
    88,561.60x = 133,047.20 × 60,913.60
  4. Step 4: Simplify right side
    88,561.60x = 8,104,383,921.92
  5. Step 5: Solve for x
    x = 8,104,383,921.92/88,561.60
  6. Step 6: Final answer
    x = 91,511.26

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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.