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Finding the Fourth Proportional to 170,889.72, 235,822.92 and 94,407.60

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Solution

The fourth proportional to 170,889.72, 235,822.92 and 94,407.60 is: 130,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,889.72 : 235,822.92 = 94,407.60 : x
  2. Step 2: Convert to fraction form
    170,889.72/235,822.92 = 94,407.60/x
  3. Step 3: Cross multiply
    170,889.72x = 235,822.92 × 94,407.60
  4. Step 4: Simplify right side
    170,889.72x = 22,263,475,902.19
  5. Step 5: Solve for x
    x = 22,263,475,902.19/170,889.72
  6. Step 6: Final answer
    x = 130,279.78

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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.