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Finding the Fourth Proportional to 169,912.36, 234,460.02 and 98,281.72

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Solution

The fourth proportional to 169,912.36, 234,460.02 and 98,281.72 is: 135,617.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912.36 : 234,460.02 = 98,281.72 : x
  2. Step 2: Convert to fraction form
    169,912.36/234,460.02 = 98,281.72/x
  3. Step 3: Cross multiply
    169,912.36x = 234,460.02 × 98,281.72
  4. Step 4: Simplify right side
    169,912.36x = 23,043,134,036.83
  5. Step 5: Solve for x
    x = 23,043,134,036.83/169,912.36
  6. Step 6: Final answer
    x = 135,617.76

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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.