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Finding the Fourth Proportional to 499,685.76, 749,523.78 and 144,696.78

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Solution

The fourth proportional to 499,685.76, 749,523.78 and 144,696.78 is: 217,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,685.76 : 749,523.78 = 144,696.78 : x
  2. Step 2: Convert to fraction form
    499,685.76/749,523.78 = 144,696.78/x
  3. Step 3: Cross multiply
    499,685.76x = 749,523.78 × 144,696.78
  4. Step 4: Simplify right side
    499,685.76x = 108,453,677,499.43
  5. Step 5: Solve for x
    x = 108,453,677,499.43/499,685.76
  6. Step 6: Final answer
    x = 217,043.76

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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.