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Finding the Fourth Proportional to 170,693.50, 255,971.79 and 70,785.82

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Solution

The fourth proportional to 170,693.50, 255,971.79 and 70,785.82 is: 106,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,693.50 : 255,971.79 = 70,785.82 : x
  2. Step 2: Convert to fraction form
    170,693.50/255,971.79 = 70,785.82/x
  3. Step 3: Cross multiply
    170,693.50x = 255,971.79 × 70,785.82
  4. Step 4: Simplify right side
    170,693.50x = 18,119,173,052.02
  5. Step 5: Solve for x
    x = 18,119,173,052.02/170,693.50
  6. Step 6: Final answer
    x = 106,150.34

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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.