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Finding the Fourth Proportional to 171,502.48, 257,346.66 and 71,671.45

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Solution

The fourth proportional to 171,502.48, 257,346.66 and 71,671.45 is: 107,546.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,502.48 : 257,346.66 = 71,671.45 : x
  2. Step 2: Convert to fraction form
    171,502.48/257,346.66 = 71,671.45/x
  3. Step 3: Cross multiply
    171,502.48x = 257,346.66 × 71,671.45
  4. Step 4: Simplify right side
    171,502.48x = 18,444,408,274.86
  5. Step 5: Solve for x
    x = 18,444,408,274.86/171,502.48
  6. Step 6: Final answer
    x = 107,546.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.