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Finding the Fourth Proportional to 171,382.48, 256,630.80 and 118,238.32

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Solution

The fourth proportional to 171,382.48, 256,630.80 and 118,238.32 is: 177,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,382.48 : 256,630.80 = 118,238.32 : x
  2. Step 2: Convert to fraction form
    171,382.48/256,630.80 = 118,238.32/x
  3. Step 3: Cross multiply
    171,382.48x = 256,630.80 × 118,238.32
  4. Step 4: Simplify right side
    171,382.48x = 30,343,594,652.26
  5. Step 5: Solve for x
    x = 30,343,594,652.26/171,382.48
  6. Step 6: Final answer
    x = 177,051.91

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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.