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Finding the Fourth Proportional to 256,427.88, 353,869.60 and 141,703.33

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Solution

The fourth proportional to 256,427.88, 353,869.60 and 141,703.33 is: 195,550.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,427.88 : 353,869.60 = 141,703.33 : x
  2. Step 2: Convert to fraction form
    256,427.88/353,869.60 = 141,703.33/x
  3. Step 3: Cross multiply
    256,427.88x = 353,869.60 × 141,703.33
  4. Step 4: Simplify right side
    256,427.88x = 50,144,500,396.03
  5. Step 5: Solve for x
    x = 50,144,500,396.03/256,427.88
  6. Step 6: Final answer
    x = 195,550.11

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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.