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Finding the Fourth Proportional to 256,673.80, 354,198.18 and 141,953.50

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Solution

The fourth proportional to 256,673.80, 354,198.18 and 141,953.50 is: 195,889.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,673.80 : 354,198.18 = 141,953.50 : x
  2. Step 2: Convert to fraction form
    256,673.80/354,198.18 = 141,953.50/x
  3. Step 3: Cross multiply
    256,673.80x = 354,198.18 × 141,953.50
  4. Step 4: Simplify right side
    256,673.80x = 50,279,671,344.63
  5. Step 5: Solve for x
    x = 50,279,671,344.63/256,673.80
  6. Step 6: Final answer
    x = 195,889.38

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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.