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Finding the Fourth Proportional to 175,321.60, 262,982.40 and 161,804.80

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Solution

The fourth proportional to 175,321.60, 262,982.40 and 161,804.80 is: 242,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,321.60 : 262,982.40 = 161,804.80 : x
  2. Step 2: Convert to fraction form
    175,321.60/262,982.40 = 161,804.80/x
  3. Step 3: Cross multiply
    175,321.60x = 262,982.40 × 161,804.80
  4. Step 4: Simplify right side
    175,321.60x = 42,551,814,635.52
  5. Step 5: Solve for x
    x = 42,551,814,635.52/175,321.60
  6. Step 6: Final answer
    x = 242,707.20

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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.