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Finding the Fourth Proportional to 236,368.38, 326,187.84 and 128,938.44

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Solution

The fourth proportional to 236,368.38, 326,187.84 and 128,938.44 is: 177,934.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,368.38 : 326,187.84 = 128,938.44 : x
  2. Step 2: Convert to fraction form
    236,368.38/326,187.84 = 128,938.44/x
  3. Step 3: Cross multiply
    236,368.38x = 326,187.84 × 128,938.44
  4. Step 4: Simplify right side
    236,368.38x = 42,058,151,236.57
  5. Step 5: Solve for x
    x = 42,058,151,236.57/236,368.38
  6. Step 6: Final answer
    x = 177,934.76

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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.