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Finding the Fourth Proportional to 170,685.98, 256,062 and 65,496.77

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Solution

The fourth proportional to 170,685.98, 256,062 and 65,496.77 is: 98,257.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,685.98 : 256,062 = 65,496.77 : x
  2. Step 2: Convert to fraction form
    170,685.98/256,062 = 65,496.77/x
  3. Step 3: Cross multiply
    170,685.98x = 256,062 × 65,496.77
  4. Step 4: Simplify right side
    170,685.98x = 16,771,232,639.43
  5. Step 5: Solve for x
    x = 16,771,232,639.43/170,685.98
  6. Step 6: Final answer
    x = 98,257.82

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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.