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Finding the Fourth Proportional to 170,991.60, 256,501.98 and 44,648.64

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Solution

The fourth proportional to 170,991.60, 256,501.98 and 44,648.64 is: 66,976.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,991.60 : 256,501.98 = 44,648.64 : x
  2. Step 2: Convert to fraction form
    170,991.60/256,501.98 = 44,648.64/x
  3. Step 3: Cross multiply
    170,991.60x = 256,501.98 × 44,648.64
  4. Step 4: Simplify right side
    170,991.60x = 11,452,464,564.31
  5. Step 5: Solve for x
    x = 11,452,464,564.31/170,991.60
  6. Step 6: Final answer
    x = 66,976.77

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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.