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Finding the Fourth Proportional to 256,520.52, 353,769.12 and 161,036.10

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Solution

The fourth proportional to 256,520.52, 353,769.12 and 161,036.10 is: 222,085.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,520.52 : 353,769.12 = 161,036.10 : x
  2. Step 2: Convert to fraction form
    256,520.52/353,769.12 = 161,036.10/x
  3. Step 3: Cross multiply
    256,520.52x = 353,769.12 × 161,036.10
  4. Step 4: Simplify right side
    256,520.52x = 56,969,599,385.23
  5. Step 5: Solve for x
    x = 56,969,599,385.23/256,520.52
  6. Step 6: Final answer
    x = 222,085.93

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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.