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Finding the Fourth Proportional to 168,400.40, 232,169.24 and 139,611.40

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Solution

The fourth proportional to 168,400.40, 232,169.24 and 139,611.40 is: 192,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,400.40 : 232,169.24 = 139,611.40 : x
  2. Step 2: Convert to fraction form
    168,400.40/232,169.24 = 139,611.40/x
  3. Step 3: Cross multiply
    168,400.40x = 232,169.24 × 139,611.40
  4. Step 4: Simplify right side
    168,400.40x = 32,413,472,633.34
  5. Step 5: Solve for x
    x = 32,413,472,633.34/168,400.40
  6. Step 6: Final answer
    x = 192,478.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.