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Finding the Fourth Proportional to 351,627, 527,527.98 and 102,309

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Solution

The fourth proportional to 351,627, 527,527.98 and 102,309 is: 153,488.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,627 : 527,527.98 = 102,309 : x
  2. Step 2: Convert to fraction form
    351,627/527,527.98 = 102,309/x
  3. Step 3: Cross multiply
    351,627x = 527,527.98 × 102,309
  4. Step 4: Simplify right side
    351,627x = 53,970,860,105.82
  5. Step 5: Solve for x
    x = 53,970,860,105.82/351,627
  6. Step 6: Final answer
    x = 153,488.95

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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.