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Finding the Fourth Proportional to 169,176.86, 253,745.52 and 67,970.81

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Solution

The fourth proportional to 169,176.86, 253,745.52 and 67,970.81 is: 101,948.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,176.86 : 253,745.52 = 67,970.81 : x
  2. Step 2: Convert to fraction form
    169,176.86/253,745.52 = 67,970.81/x
  3. Step 3: Cross multiply
    169,176.86x = 253,745.52 × 67,970.81
  4. Step 4: Simplify right side
    169,176.86x = 17,247,288,465.98
  5. Step 5: Solve for x
    x = 17,247,288,465.98/169,176.86
  6. Step 6: Final answer
    x = 101,948.27

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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.