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Finding the Fourth Proportional to 88,069.60, 131,812.80 and 88,069.60

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Solution

The fourth proportional to 88,069.60, 131,812.80 and 88,069.60 is: 131,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,069.60 : 131,812.80 = 88,069.60 : x
  2. Step 2: Convert to fraction form
    88,069.60/131,812.80 = 88,069.60/x
  3. Step 3: Cross multiply
    88,069.60x = 131,812.80 × 88,069.60
  4. Step 4: Simplify right side
    88,069.60x = 11,608,700,570.88
  5. Step 5: Solve for x
    x = 11,608,700,570.88/88,069.60
  6. Step 6: Final answer
    x = 131,812.80

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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.