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Finding the Fourth Proportional to 238,170.58, 357,343.11 and 171,685.78

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Solution

The fourth proportional to 238,170.58, 357,343.11 and 171,685.78 is: 257,591.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,170.58 : 357,343.11 = 171,685.78 : x
  2. Step 2: Convert to fraction form
    238,170.58/357,343.11 = 171,685.78/x
  3. Step 3: Cross multiply
    238,170.58x = 357,343.11 × 171,685.78
  4. Step 4: Simplify right side
    238,170.58x = 61,350,730,567.98
  5. Step 5: Solve for x
    x = 61,350,730,567.98/238,170.58
  6. Step 6: Final answer
    x = 257,591.56

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1.5x scale

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.