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Finding the Fourth Proportional to 499,362.76, 748,888.62 and 166,861

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Solution

The fourth proportional to 499,362.76, 748,888.62 and 166,861 is: 250,239.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,362.76 : 748,888.62 = 166,861 : x
  2. Step 2: Convert to fraction form
    499,362.76/748,888.62 = 166,861/x
  3. Step 3: Cross multiply
    499,362.76x = 748,888.62 × 166,861
  4. Step 4: Simplify right side
    499,362.76x = 124,960,304,021.82
  5. Step 5: Solve for x
    x = 124,960,304,021.82/499,362.76
  6. Step 6: Final answer
    x = 250,239.53

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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.