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Finding the Fourth Proportional to 170,883.20, 256,369.60 and 65,705.60

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Solution

The fourth proportional to 170,883.20, 256,369.60 and 65,705.60 is: 98,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,883.20 : 256,369.60 = 65,705.60 : x
  2. Step 2: Convert to fraction form
    170,883.20/256,369.60 = 65,705.60/x
  3. Step 3: Cross multiply
    170,883.20x = 256,369.60 × 65,705.60
  4. Step 4: Simplify right side
    170,883.20x = 16,844,918,389.76
  5. Step 5: Solve for x
    x = 16,844,918,389.76/170,883.20
  6. Step 6: Final answer
    x = 98,575.63

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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.