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Finding the Fourth Proportional to 170,657.56, 256,019.30 and 65,468.32

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Solution

The fourth proportional to 170,657.56, 256,019.30 and 65,468.32 is: 98,215.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,657.56 : 256,019.30 = 65,468.32 : x
  2. Step 2: Convert to fraction form
    170,657.56/256,019.30 = 65,468.32/x
  3. Step 3: Cross multiply
    170,657.56x = 256,019.30 × 65,468.32
  4. Step 4: Simplify right side
    170,657.56x = 16,761,153,458.58
  5. Step 5: Solve for x
    x = 16,761,153,458.58/170,657.56
  6. Step 6: Final answer
    x = 98,215.12

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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.