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Finding the Fourth Proportional to 256,517.56, 354,042.93 and 169,148.89

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Solution

The fourth proportional to 256,517.56, 354,042.93 and 169,148.89 is: 233,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,517.56 : 354,042.93 = 169,148.89 : x
  2. Step 2: Convert to fraction form
    256,517.56/354,042.93 = 169,148.89/x
  3. Step 3: Cross multiply
    256,517.56x = 354,042.93 × 169,148.89
  4. Step 4: Simplify right side
    256,517.56x = 59,885,968,621.85
  5. Step 5: Solve for x
    x = 59,885,968,621.85/256,517.56
  6. Step 6: Final answer
    x = 233,457.58

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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.