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Finding the Fourth Proportional to 169,274.08, 253,911.47 and 42,914.28

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Solution

The fourth proportional to 169,274.08, 253,911.47 and 42,914.28 is: 64,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,274.08 : 253,911.47 = 42,914.28 : x
  2. Step 2: Convert to fraction form
    169,274.08/253,911.47 = 42,914.28/x
  3. Step 3: Cross multiply
    169,274.08x = 253,911.47 × 42,914.28
  4. Step 4: Simplify right side
    169,274.08x = 10,896,427,918.79
  5. Step 5: Solve for x
    x = 10,896,427,918.79/169,274.08
  6. Step 6: Final answer
    x = 64,371.51

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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.