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Finding the Fourth Proportional to 256,239.94, 353,605.72 and 141,511.90

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Solution

The fourth proportional to 256,239.94, 353,605.72 and 141,511.90 is: 195,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,239.94 : 353,605.72 = 141,511.90 : x
  2. Step 2: Convert to fraction form
    256,239.94/353,605.72 = 141,511.90/x
  3. Step 3: Cross multiply
    256,239.94x = 353,605.72 × 141,511.90
  4. Step 4: Simplify right side
    256,239.94x = 50,039,417,288.07
  5. Step 5: Solve for x
    x = 50,039,417,288.07/256,239.94
  6. Step 6: Final answer
    x = 195,283.44

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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.