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Finding the Fourth Proportional to 170,893.62, 256,376.78 and 58,543.68

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Solution

The fourth proportional to 170,893.62, 256,376.78 and 58,543.68 is: 87,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,893.62 : 256,376.78 = 58,543.68 : x
  2. Step 2: Convert to fraction form
    170,893.62/256,376.78 = 58,543.68/x
  3. Step 3: Cross multiply
    170,893.62x = 256,376.78 × 58,543.68
  4. Step 4: Simplify right side
    170,893.62x = 15,009,239,875.03
  5. Step 5: Solve for x
    x = 15,009,239,875.03/170,893.62
  6. Step 6: Final answer
    x = 87,827.97

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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.