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Finding the Fourth Proportional to 175,563.60, 263,172.60 and 86,830.80

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Solution

The fourth proportional to 175,563.60, 263,172.60 and 86,830.80 is: 130,160.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,563.60 : 263,172.60 = 86,830.80 : x
  2. Step 2: Convert to fraction form
    175,563.60/263,172.60 = 86,830.80/x
  3. Step 3: Cross multiply
    175,563.60x = 263,172.60 × 86,830.80
  4. Step 4: Simplify right side
    175,563.60x = 22,851,487,396.08
  5. Step 5: Solve for x
    x = 22,851,487,396.08/175,563.60
  6. Step 6: Final answer
    x = 130,160.74

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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.