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Finding the Fourth Proportional to 170,783.80, 256,175.70 and 160,415.80

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Solution

The fourth proportional to 170,783.80, 256,175.70 and 160,415.80 is: 240,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,783.80 : 256,175.70 = 160,415.80 : x
  2. Step 2: Convert to fraction form
    170,783.80/256,175.70 = 160,415.80/x
  3. Step 3: Cross multiply
    170,783.80x = 256,175.70 × 160,415.80
  4. Step 4: Simplify right side
    170,783.80x = 41,094,629,856.06
  5. Step 5: Solve for x
    x = 41,094,629,856.06/170,783.80
  6. Step 6: Final answer
    x = 240,623.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.