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Finding the Fourth Proportional to 286,777.71, 430,166.52 and 136,562.56

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Solution

The fourth proportional to 286,777.71, 430,166.52 and 136,562.56 is: 204,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,777.71 : 430,166.52 = 136,562.56 : x
  2. Step 2: Convert to fraction form
    286,777.71/430,166.52 = 136,562.56/x
  3. Step 3: Cross multiply
    286,777.71x = 430,166.52 × 136,562.56
  4. Step 4: Simplify right side
    286,777.71x = 58,744,640,122.07
  5. Step 5: Solve for x
    x = 58,744,640,122.07/286,777.71
  6. Step 6: Final answer
    x = 204,843.81

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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.