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Finding the Fourth Proportional to 169,730.22, 234,034.47 and 108,393.78

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Solution

The fourth proportional to 169,730.22, 234,034.47 and 108,393.78 is: 149,460.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,730.22 : 234,034.47 = 108,393.78 : x
  2. Step 2: Convert to fraction form
    169,730.22/234,034.47 = 108,393.78/x
  3. Step 3: Cross multiply
    169,730.22x = 234,034.47 × 108,393.78
  4. Step 4: Simplify right side
    169,730.22x = 25,367,880,853.60
  5. Step 5: Solve for x
    x = 25,367,880,853.60/169,730.22
  6. Step 6: Final answer
    x = 149,460.01

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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.