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Finding the Fourth Proportional to 357,163.80, 534,870.90 and 169,956.60

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Solution

The fourth proportional to 357,163.80, 534,870.90 and 169,956.60 is: 254,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,163.80 : 534,870.90 = 169,956.60 : x
  2. Step 2: Convert to fraction form
    357,163.80/534,870.90 = 169,956.60/x
  3. Step 3: Cross multiply
    357,163.80x = 534,870.90 × 169,956.60
  4. Step 4: Simplify right side
    357,163.80x = 90,904,839,602.94
  5. Step 5: Solve for x
    x = 90,904,839,602.94/357,163.80
  6. Step 6: Final answer
    x = 254,518.63

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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.