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Finding the Fourth Proportional to 169,912.92, 234,494.76 and 93,445.48

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Solution

The fourth proportional to 169,912.92, 234,494.76 and 93,445.48 is: 128,962.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912.92 : 234,494.76 = 93,445.48 : x
  2. Step 2: Convert to fraction form
    169,912.92/234,494.76 = 93,445.48/x
  3. Step 3: Cross multiply
    169,912.92x = 234,494.76 × 93,445.48
  4. Step 4: Simplify right side
    169,912.92x = 21,912,473,941.74
  5. Step 5: Solve for x
    x = 21,912,473,941.74/169,912.92
  6. Step 6: Final answer
    x = 128,962.97

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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.