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Finding the Fourth Proportional to 499,913.78, 749,716.36 and 144,953.96

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Solution

The fourth proportional to 499,913.78, 749,716.36 and 144,953.96 is: 217,386.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,913.78 : 749,716.36 = 144,953.96 : x
  2. Step 2: Convert to fraction form
    499,913.78/749,716.36 = 144,953.96/x
  3. Step 3: Cross multiply
    499,913.78x = 749,716.36 × 144,953.96
  4. Step 4: Simplify right side
    499,913.78x = 108,674,351,147.82
  5. Step 5: Solve for x
    x = 108,674,351,147.82/499,913.78
  6. Step 6: Final answer
    x = 217,386.19

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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.