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Finding the Fourth Proportional to 163,600.80, 245,401.26 and 51,289.83

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Solution

The fourth proportional to 163,600.80, 245,401.26 and 51,289.83 is: 76,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,600.80 : 245,401.26 = 51,289.83 : x
  2. Step 2: Convert to fraction form
    163,600.80/245,401.26 = 51,289.83/x
  3. Step 3: Cross multiply
    163,600.80x = 245,401.26 × 51,289.83
  4. Step 4: Simplify right side
    163,600.80x = 12,586,588,907.19
  5. Step 5: Solve for x
    x = 12,586,588,907.19/163,600.80
  6. Step 6: Final answer
    x = 76,934.76

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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.