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Finding the Fourth Proportional to 256,467.96, 353,914.78 and 141,740.68

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Solution

The fourth proportional to 256,467.96, 353,914.78 and 141,740.68 is: 195,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,467.96 : 353,914.78 = 141,740.68 : x
  2. Step 2: Convert to fraction form
    256,467.96/353,914.78 = 141,740.68/x
  3. Step 3: Cross multiply
    256,467.96x = 353,914.78 × 141,740.68
  4. Step 4: Simplify right side
    256,467.96x = 50,164,119,875.43
  5. Step 5: Solve for x
    x = 50,164,119,875.43/256,467.96
  6. Step 6: Final answer
    x = 195,596.05

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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.