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Finding the Fourth Proportional to 173,445.80, 260,168.70 and 111,237.80

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Solution

The fourth proportional to 173,445.80, 260,168.70 and 111,237.80 is: 166,856.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,445.80 : 260,168.70 = 111,237.80 : x
  2. Step 2: Convert to fraction form
    173,445.80/260,168.70 = 111,237.80/x
  3. Step 3: Cross multiply
    173,445.80x = 260,168.70 × 111,237.80
  4. Step 4: Simplify right side
    173,445.80x = 28,940,593,816.86
  5. Step 5: Solve for x
    x = 28,940,593,816.86/173,445.80
  6. Step 6: Final answer
    x = 166,856.70

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1.5x scale

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.