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Finding the Fourth Proportional to 170,597.76, 255,896.32 and 91,749.12

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Solution

The fourth proportional to 170,597.76, 255,896.32 and 91,749.12 is: 137,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,597.76 : 255,896.32 = 91,749.12 : x
  2. Step 2: Convert to fraction form
    170,597.76/255,896.32 = 91,749.12/x
  3. Step 3: Cross multiply
    170,597.76x = 255,896.32 × 91,749.12
  4. Step 4: Simplify right side
    170,597.76x = 23,478,262,171.24
  5. Step 5: Solve for x
    x = 23,478,262,171.24/170,597.76
  6. Step 6: Final answer
    x = 137,623.51

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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.