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Finding the Fourth Proportional to 168,390.63, 232,379.37 and 92,939.13

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Solution

The fourth proportional to 168,390.63, 232,379.37 and 92,939.13 is: 128,256.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,390.63 : 232,379.37 = 92,939.13 : x
  2. Step 2: Convert to fraction form
    168,390.63/232,379.37 = 92,939.13/x
  3. Step 3: Cross multiply
    168,390.63x = 232,379.37 × 92,939.13
  4. Step 4: Simplify right side
    168,390.63x = 21,597,136,477.75
  5. Step 5: Solve for x
    x = 21,597,136,477.75/168,390.63
  6. Step 6: Final answer
    x = 128,256.17

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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.