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Finding the Fourth Proportional to 173,289.60, 259,959.20 and 53,356.70

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Solution

The fourth proportional to 173,289.60, 259,959.20 and 53,356.70 is: 80,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,289.60 : 259,959.20 = 53,356.70 : x
  2. Step 2: Convert to fraction form
    173,289.60/259,959.20 = 53,356.70/x
  3. Step 3: Cross multiply
    173,289.60x = 259,959.20 × 53,356.70
  4. Step 4: Simplify right side
    173,289.60x = 13,870,565,046.64
  5. Step 5: Solve for x
    x = 13,870,565,046.64/173,289.60
  6. Step 6: Final answer
    x = 80,042.69

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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.