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Finding the Fourth Proportional to 187,572.68, 258,826.08 and 106,995.39

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Solution

The fourth proportional to 187,572.68, 258,826.08 and 106,995.39 is: 147,639.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,572.68 : 258,826.08 = 106,995.39 : x
  2. Step 2: Convert to fraction form
    187,572.68/258,826.08 = 106,995.39/x
  3. Step 3: Cross multiply
    187,572.68x = 258,826.08 × 106,995.39
  4. Step 4: Simplify right side
    187,572.68x = 27,693,197,371.77
  5. Step 5: Solve for x
    x = 27,693,197,371.77/187,572.68
  6. Step 6: Final answer
    x = 147,639.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.