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Finding the Fourth Proportional to 268,471.08, 402,168.98 and 161,795.64

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Solution

The fourth proportional to 268,471.08, 402,168.98 and 161,795.64 is: 242,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,471.08 : 402,168.98 = 161,795.64 : x
  2. Step 2: Convert to fraction form
    268,471.08/402,168.98 = 161,795.64/x
  3. Step 3: Cross multiply
    268,471.08x = 402,168.98 × 161,795.64
  4. Step 4: Simplify right side
    268,471.08x = 65,069,187,507.25
  5. Step 5: Solve for x
    x = 65,069,187,507.25/268,471.08
  6. Step 6: Final answer
    x = 242,369.45

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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.