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Finding the Fourth Proportional to 257,499.96, 354,905.26 and 171,304.76

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Solution

The fourth proportional to 257,499.96, 354,905.26 and 171,304.76 is: 236,104.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,499.96 : 354,905.26 = 171,304.76 : x
  2. Step 2: Convert to fraction form
    257,499.96/354,905.26 = 171,304.76/x
  3. Step 3: Cross multiply
    257,499.96x = 354,905.26 × 171,304.76
  4. Step 4: Simplify right side
    257,499.96x = 60,796,960,387.04
  5. Step 5: Solve for x
    x = 60,796,960,387.04/257,499.96
  6. Step 6: Final answer
    x = 236,104.74

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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.