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Finding the Fourth Proportional to 171,171.60, 256,411.80 and 97,213.20

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Solution

The fourth proportional to 171,171.60, 256,411.80 and 97,213.20 is: 145,623.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,171.60 : 256,411.80 = 97,213.20 : x
  2. Step 2: Convert to fraction form
    171,171.60/256,411.80 = 97,213.20/x
  3. Step 3: Cross multiply
    171,171.60x = 256,411.80 × 97,213.20
  4. Step 4: Simplify right side
    171,171.60x = 24,926,611,595.76
  5. Step 5: Solve for x
    x = 24,926,611,595.76/171,171.60
  6. Step 6: Final answer
    x = 145,623.52

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