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Finding the Fourth Proportional to 171,777.32, 257,667.34 and 70,549.29

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Solution

The fourth proportional to 171,777.32, 257,667.34 and 70,549.29 is: 105,824.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,777.32 : 257,667.34 = 70,549.29 : x
  2. Step 2: Convert to fraction form
    171,777.32/257,667.34 = 70,549.29/x
  3. Step 3: Cross multiply
    171,777.32x = 257,667.34 × 70,549.29
  4. Step 4: Simplify right side
    171,777.32x = 18,178,247,893.19
  5. Step 5: Solve for x
    x = 18,178,247,893.19/171,777.32
  6. Step 6: Final answer
    x = 105,824.49

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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.