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Finding the Fourth Proportional to 170,784.80, 255,716.40 and 170,784.80

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Solution

The fourth proportional to 170,784.80, 255,716.40 and 170,784.80 is: 255,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,784.80 : 255,716.40 = 170,784.80 : x
  2. Step 2: Convert to fraction form
    170,784.80/255,716.40 = 170,784.80/x
  3. Step 3: Cross multiply
    170,784.80x = 255,716.40 × 170,784.80
  4. Step 4: Simplify right side
    170,784.80x = 43,672,474,230.72
  5. Step 5: Solve for x
    x = 43,672,474,230.72/170,784.80
  6. Step 6: Final answer
    x = 255,716.40

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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.