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Finding the Fourth Proportional to 170,549.28, 235,375.20 and 98,945.28

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Solution

The fourth proportional to 170,549.28, 235,375.20 and 98,945.28 is: 136,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,549.28 : 235,375.20 = 98,945.28 : x
  2. Step 2: Convert to fraction form
    170,549.28/235,375.20 = 98,945.28/x
  3. Step 3: Cross multiply
    170,549.28x = 235,375.20 × 98,945.28
  4. Step 4: Simplify right side
    170,549.28x = 23,289,265,069.06
  5. Step 5: Solve for x
    x = 23,289,265,069.06/170,549.28
  6. Step 6: Final answer
    x = 136,554.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.