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Finding the Fourth Proportional to 169,891.64, 254,282.81 and 124,901.12

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Solution

The fourth proportional to 169,891.64, 254,282.81 and 124,901.12 is: 186,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,891.64 : 254,282.81 = 124,901.12 : x
  2. Step 2: Convert to fraction form
    169,891.64/254,282.81 = 124,901.12/x
  3. Step 3: Cross multiply
    169,891.64x = 254,282.81 × 124,901.12
  4. Step 4: Simplify right side
    169,891.64x = 31,760,205,869.83
  5. Step 5: Solve for x
    x = 31,760,205,869.83/169,891.64
  6. Step 6: Final answer
    x = 186,943.91

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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.