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Finding the Fourth Proportional to 199,586.84, 275,429.79 and 136,035.63

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Solution

The fourth proportional to 199,586.84, 275,429.79 and 136,035.63 is: 187,729.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,586.84 : 275,429.79 = 136,035.63 : x
  2. Step 2: Convert to fraction form
    199,586.84/275,429.79 = 136,035.63/x
  3. Step 3: Cross multiply
    199,586.84x = 275,429.79 × 136,035.63
  4. Step 4: Simplify right side
    199,586.84x = 37,468,265,003.42
  5. Step 5: Solve for x
    x = 37,468,265,003.42/199,586.84
  6. Step 6: Final answer
    x = 187,729.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.