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Finding the Fourth Proportional to 99,562.54, 149,418.99 and 67,897.51

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Solution

The fourth proportional to 99,562.54, 149,418.99 and 67,897.51 is: 101,897.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,562.54 : 149,418.99 = 67,897.51 : x
  2. Step 2: Convert to fraction form
    99,562.54/149,418.99 = 67,897.51/x
  3. Step 3: Cross multiply
    99,562.54x = 149,418.99 × 67,897.51
  4. Step 4: Simplify right side
    99,562.54x = 10,145,177,299.87
  5. Step 5: Solve for x
    x = 10,145,177,299.87/99,562.54
  6. Step 6: Final answer
    x = 101,897.54

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1.5x scale

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.