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Finding the Fourth Proportional to 99,409.91, 149,122.82 and 59,699.46

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Solution

The fourth proportional to 99,409.91, 149,122.82 and 59,699.46 is: 89,553.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,409.91 : 149,122.82 = 59,699.46 : x
  2. Step 2: Convert to fraction form
    99,409.91/149,122.82 = 59,699.46/x
  3. Step 3: Cross multiply
    99,409.91x = 149,122.82 × 59,699.46
  4. Step 4: Simplify right side
    99,409.91x = 8,902,551,843.79
  5. Step 5: Solve for x
    x = 8,902,551,843.79/99,409.91
  6. Step 6: Final answer
    x = 89,553.96

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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.