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Finding the Fourth Proportional to 170,663.75, 255,986.03 and 52,334.76

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Solution

The fourth proportional to 170,663.75, 255,986.03 and 52,334.76 is: 78,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,663.75 : 255,986.03 = 52,334.76 : x
  2. Step 2: Convert to fraction form
    170,663.75/255,986.03 = 52,334.76/x
  3. Step 3: Cross multiply
    170,663.75x = 255,986.03 × 52,334.76
  4. Step 4: Simplify right side
    170,663.75x = 13,396,967,574.24
  5. Step 5: Solve for x
    x = 13,396,967,574.24/170,663.75
  6. Step 6: Final answer
    x = 78,499.20

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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.