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Finding the Fourth Proportional to 170,609.72, 235,365.24 and 98,948.24

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Solution

The fourth proportional to 170,609.72, 235,365.24 and 98,948.24 is: 136,504.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,609.72 : 235,365.24 = 98,948.24 : x
  2. Step 2: Convert to fraction form
    170,609.72/235,365.24 = 98,948.24/x
  3. Step 3: Cross multiply
    170,609.72x = 235,365.24 × 98,948.24
  4. Step 4: Simplify right side
    170,609.72x = 23,288,976,255.18
  5. Step 5: Solve for x
    x = 23,288,976,255.18/170,609.72
  6. Step 6: Final answer
    x = 136,504.39

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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.