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Finding the Fourth Proportional to 257,497.96, 354,902.50 and 171,302.76

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Solution

The fourth proportional to 257,497.96, 354,902.50 and 171,302.76 is: 236,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,497.96 : 354,902.50 = 171,302.76 : x
  2. Step 2: Convert to fraction form
    257,497.96/354,902.50 = 171,302.76/x
  3. Step 3: Cross multiply
    257,497.96x = 354,902.50 × 171,302.76
  4. Step 4: Simplify right side
    257,497.96x = 60,795,777,780.90
  5. Step 5: Solve for x
    x = 60,795,777,780.90/257,497.96
  6. Step 6: Final answer
    x = 236,101.98

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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.