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Finding the Fourth Proportional to 256,287.77, 353,675.72 and 141,574.31

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Solution

The fourth proportional to 256,287.77, 353,675.72 and 141,574.31 is: 195,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,287.77 : 353,675.72 = 141,574.31 : x
  2. Step 2: Convert to fraction form
    256,287.77/353,675.72 = 141,574.31/x
  3. Step 3: Cross multiply
    256,287.77x = 353,675.72 × 141,574.31
  4. Step 4: Simplify right side
    256,287.77x = 50,071,394,143.53
  5. Step 5: Solve for x
    x = 50,071,394,143.53/256,287.77
  6. Step 6: Final answer
    x = 195,371.76

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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.