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Finding the Fourth Proportional to 192,007.36, 264,970.92 and 107,128

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Solution

The fourth proportional to 192,007.36, 264,970.92 and 107,128 is: 147,837.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,007.36 : 264,970.92 = 107,128 : x
  2. Step 2: Convert to fraction form
    192,007.36/264,970.92 = 107,128/x
  3. Step 3: Cross multiply
    192,007.36x = 264,970.92 × 107,128
  4. Step 4: Simplify right side
    192,007.36x = 28,385,804,717.76
  5. Step 5: Solve for x
    x = 28,385,804,717.76/192,007.36
  6. Step 6: Final answer
    x = 147,837.07

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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.