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Finding the Fourth Proportional to 256,383.15, 353,807.39 and 141,669.70

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Solution

The fourth proportional to 256,383.15, 353,807.39 and 141,669.70 is: 195,503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,383.15 : 353,807.39 = 141,669.70 : x
  2. Step 2: Convert to fraction form
    256,383.15/353,807.39 = 141,669.70/x
  3. Step 3: Cross multiply
    256,383.15x = 353,807.39 × 141,669.70
  4. Step 4: Simplify right side
    256,383.15x = 50,123,788,010.14
  5. Step 5: Solve for x
    x = 50,123,788,010.14/256,383.15
  6. Step 6: Final answer
    x = 195,503.44

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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.