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Finding the Fourth Proportional to 351,465.10, 527,424.45 and 193,806.70

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Solution

The fourth proportional to 351,465.10, 527,424.45 and 193,806.70 is: 290,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,465.10 : 527,424.45 = 193,806.70 : x
  2. Step 2: Convert to fraction form
    351,465.10/527,424.45 = 193,806.70/x
  3. Step 3: Cross multiply
    351,465.10x = 527,424.45 × 193,806.70
  4. Step 4: Simplify right side
    351,465.10x = 102,218,392,153.82
  5. Step 5: Solve for x
    x = 102,218,392,153.82/351,465.10
  6. Step 6: Final answer
    x = 290,835.11

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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.