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Finding the Fourth Proportional to 169,252.81, 253,878.73 and 42,892.69

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Solution

The fourth proportional to 169,252.81, 253,878.73 and 42,892.69 is: 64,338.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,252.81 : 253,878.73 = 42,892.69 : x
  2. Step 2: Convert to fraction form
    169,252.81/253,878.73 = 42,892.69/x
  3. Step 3: Cross multiply
    169,252.81x = 253,878.73 × 42,892.69
  4. Step 4: Simplify right side
    169,252.81x = 10,889,541,663.48
  5. Step 5: Solve for x
    x = 10,889,541,663.48/169,252.81
  6. Step 6: Final answer
    x = 64,338.91

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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.