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Finding the Fourth Proportional to 174,909.20, 262,428.60 and 168,429.20

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Solution

The fourth proportional to 174,909.20, 262,428.60 and 168,429.20 is: 252,706.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,909.20 : 262,428.60 = 168,429.20 : x
  2. Step 2: Convert to fraction form
    174,909.20/262,428.60 = 168,429.20/x
  3. Step 3: Cross multiply
    174,909.20x = 262,428.60 × 168,429.20
  4. Step 4: Simplify right side
    174,909.20x = 44,200,639,155.12
  5. Step 5: Solve for x
    x = 44,200,639,155.12/174,909.20
  6. Step 6: Final answer
    x = 252,706.20

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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.