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Finding the Fourth Proportional to 169,872.36, 254,808.66 and 43,513.08

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Solution

The fourth proportional to 169,872.36, 254,808.66 and 43,513.08 is: 65,269.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,872.36 : 254,808.66 = 43,513.08 : x
  2. Step 2: Convert to fraction form
    169,872.36/254,808.66 = 43,513.08/x
  3. Step 3: Cross multiply
    169,872.36x = 254,808.66 × 43,513.08
  4. Step 4: Simplify right side
    169,872.36x = 11,087,509,607.27
  5. Step 5: Solve for x
    x = 11,087,509,607.27/169,872.36
  6. Step 6: Final answer
    x = 65,269.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.