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Finding the Fourth Proportional to 174,807.20, 262,340.40 and 115,623.20

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Solution

The fourth proportional to 174,807.20, 262,340.40 and 115,623.20 is: 173,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,807.20 : 262,340.40 = 115,623.20 : x
  2. Step 2: Convert to fraction form
    174,807.20/262,340.40 = 115,623.20/x
  3. Step 3: Cross multiply
    174,807.20x = 262,340.40 × 115,623.20
  4. Step 4: Simplify right side
    174,807.20x = 30,332,636,537.28
  5. Step 5: Solve for x
    x = 30,332,636,537.28/174,807.20
  6. Step 6: Final answer
    x = 173,520.52

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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.