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Finding the Fourth Proportional to 351,336.75, 527,019.71 and 102,018.75

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Solution

The fourth proportional to 351,336.75, 527,019.71 and 102,018.75 is: 153,032.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,336.75 : 527,019.71 = 102,018.75 : x
  2. Step 2: Convert to fraction form
    351,336.75/527,019.71 = 102,018.75/x
  3. Step 3: Cross multiply
    351,336.75x = 527,019.71 × 102,018.75
  4. Step 4: Simplify right side
    351,336.75x = 53,765,891,529.47
  5. Step 5: Solve for x
    x = 53,765,891,529.47/351,336.75
  6. Step 6: Final answer
    x = 153,032.36

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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.