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Finding the Fourth Proportional to 192,628, 265,826.64 and 125,560

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Solution

The fourth proportional to 192,628, 265,826.64 and 125,560 is: 173,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,628 : 265,826.64 = 125,560 : x
  2. Step 2: Convert to fraction form
    192,628/265,826.64 = 125,560/x
  3. Step 3: Cross multiply
    192,628x = 265,826.64 × 125,560
  4. Step 4: Simplify right side
    192,628x = 33,377,192,918.40
  5. Step 5: Solve for x
    x = 33,377,192,918.40/192,628
  6. Step 6: Final answer
    x = 173,272.80

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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.