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Finding the Fourth Proportional to 169,876.28, 254,813.40 and 43,516.28

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Solution

The fourth proportional to 169,876.28, 254,813.40 and 43,516.28 is: 65,274.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,876.28 : 254,813.40 = 43,516.28 : x
  2. Step 2: Convert to fraction form
    169,876.28/254,813.40 = 43,516.28/x
  3. Step 3: Cross multiply
    169,876.28x = 254,813.40 × 43,516.28
  4. Step 4: Simplify right side
    169,876.28x = 11,088,531,262.15
  5. Step 5: Solve for x
    x = 11,088,531,262.15/169,876.28
  6. Step 6: Final answer
    x = 65,274.16

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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.