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Finding the Fourth Proportional to 256,850.40, 354,298.57 and 169,636.03

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Solution

The fourth proportional to 256,850.40, 354,298.57 and 169,636.03 is: 233,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,850.40 : 354,298.57 = 169,636.03 : x
  2. Step 2: Convert to fraction form
    256,850.40/354,298.57 = 169,636.03/x
  3. Step 3: Cross multiply
    256,850.40x = 354,298.57 × 169,636.03
  4. Step 4: Simplify right side
    256,850.40x = 60,101,801,539.64
  5. Step 5: Solve for x
    x = 60,101,801,539.64/256,850.40
  6. Step 6: Final answer
    x = 233,995.36

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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.