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Finding the Fourth Proportional to 88,857.40, 133,091.70 and 53,735.80

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Solution

The fourth proportional to 88,857.40, 133,091.70 and 53,735.80 is: 80,486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,857.40 : 133,091.70 = 53,735.80 : x
  2. Step 2: Convert to fraction form
    88,857.40/133,091.70 = 53,735.80/x
  3. Step 3: Cross multiply
    88,857.40x = 133,091.70 × 53,735.80
  4. Step 4: Simplify right side
    88,857.40x = 7,151,788,972.86
  5. Step 5: Solve for x
    x = 7,151,788,972.86/88,857.40
  6. Step 6: Final answer
    x = 80,486.14

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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.