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Finding the Fourth Proportional to 70,894.80, 106,500.60 and 59,230.80

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Solution

The fourth proportional to 70,894.80, 106,500.60 and 59,230.80 is: 88,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,894.80 : 106,500.60 = 59,230.80 : x
  2. Step 2: Convert to fraction form
    70,894.80/106,500.60 = 59,230.80/x
  3. Step 3: Cross multiply
    70,894.80x = 106,500.60 × 59,230.80
  4. Step 4: Simplify right side
    70,894.80x = 6,308,115,738.48
  5. Step 5: Solve for x
    x = 6,308,115,738.48/70,894.80
  6. Step 6: Final answer
    x = 88,978.54

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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.