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Finding the Fourth Proportional to 171,066.30, 256,113.45 and 161,756.70

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Solution

The fourth proportional to 171,066.30, 256,113.45 and 161,756.70 is: 242,175.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,066.30 : 256,113.45 = 161,756.70 : x
  2. Step 2: Convert to fraction form
    171,066.30/256,113.45 = 161,756.70/x
  3. Step 3: Cross multiply
    171,066.30x = 256,113.45 × 161,756.70
  4. Step 4: Simplify right side
    171,066.30x = 41,428,066,497.62
  5. Step 5: Solve for x
    x = 41,428,066,497.62/171,066.30
  6. Step 6: Final answer
    x = 242,175.50

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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.