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Finding the Fourth Proportional to 499,740.54, 749,610.78 and 144,754.62

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Solution

The fourth proportional to 499,740.54, 749,610.78 and 144,754.62 is: 217,131.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,740.54 : 749,610.78 = 144,754.62 : x
  2. Step 2: Convert to fraction form
    499,740.54/749,610.78 = 144,754.62/x
  3. Step 3: Cross multiply
    499,740.54x = 749,610.78 × 144,754.62
  4. Step 4: Simplify right side
    499,740.54x = 108,509,623,606.80
  5. Step 5: Solve for x
    x = 108,509,623,606.80/499,740.54
  6. Step 6: Final answer
    x = 217,131.92

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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.