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Finding the Fourth Proportional to 299,262.15, 412,991.72 and 163,303.56

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Solution

The fourth proportional to 299,262.15, 412,991.72 and 163,303.56 is: 225,364.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,262.15 : 412,991.72 = 163,303.56 : x
  2. Step 2: Convert to fraction form
    299,262.15/412,991.72 = 163,303.56/x
  3. Step 3: Cross multiply
    299,262.15x = 412,991.72 × 163,303.56
  4. Step 4: Simplify right side
    299,262.15x = 67,443,017,310.01
  5. Step 5: Solve for x
    x = 67,443,017,310.01/299,262.15
  6. Step 6: Final answer
    x = 225,364.34

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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.