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Finding the Fourth Proportional to 170,910.36, 256,369.68 and 52,582.68

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Solution

The fourth proportional to 170,910.36, 256,369.68 and 52,582.68 is: 78,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,910.36 : 256,369.68 = 52,582.68 : x
  2. Step 2: Convert to fraction form
    170,910.36/256,369.68 = 52,582.68/x
  3. Step 3: Cross multiply
    170,910.36x = 256,369.68 × 52,582.68
  4. Step 4: Simplify right side
    170,910.36x = 13,480,604,845.14
  5. Step 5: Solve for x
    x = 13,480,604,845.14/170,910.36
  6. Step 6: Final answer
    x = 78,875.29

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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.