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Finding the Fourth Proportional to 88,821.40, 133,059.30 and 53,656.60

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Solution

The fourth proportional to 88,821.40, 133,059.30 and 53,656.60 is: 80,380.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,821.40 : 133,059.30 = 53,656.60 : x
  2. Step 2: Convert to fraction form
    88,821.40/133,059.30 = 53,656.60/x
  3. Step 3: Cross multiply
    88,821.40x = 133,059.30 × 53,656.60
  4. Step 4: Simplify right side
    88,821.40x = 7,139,509,636.38
  5. Step 5: Solve for x
    x = 7,139,509,636.38/88,821.40
  6. Step 6: Final answer
    x = 80,380.51

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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.