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Finding the Fourth Proportional to 114,562.20, 171,843.30 and 112,812.60

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Solution

The fourth proportional to 114,562.20, 171,843.30 and 112,812.60 is: 169,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,562.20 : 171,843.30 = 112,812.60 : x
  2. Step 2: Convert to fraction form
    114,562.20/171,843.30 = 112,812.60/x
  3. Step 3: Cross multiply
    114,562.20x = 171,843.30 × 112,812.60
  4. Step 4: Simplify right side
    114,562.20x = 19,386,089,465.58
  5. Step 5: Solve for x
    x = 19,386,089,465.58/114,562.20
  6. Step 6: Final answer
    x = 169,218.90

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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.