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Finding the Fourth Proportional to 256,445.44, 353,892.72 and 141,731.80

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Solution

The fourth proportional to 256,445.44, 353,892.72 and 141,731.80 is: 195,588.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,445.44 : 353,892.72 = 141,731.80 : x
  2. Step 2: Convert to fraction form
    256,445.44/353,892.72 = 141,731.80/x
  3. Step 3: Cross multiply
    256,445.44x = 353,892.72 × 141,731.80
  4. Step 4: Simplify right side
    256,445.44x = 50,157,852,212.50
  5. Step 5: Solve for x
    x = 50,157,852,212.50/256,445.44
  6. Step 6: Final answer
    x = 195,588.79

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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.