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Finding the Fourth Proportional to 195,192, 269,365.28 and 105,768

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Solution

The fourth proportional to 195,192, 269,365.28 and 105,768 is: 145,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,192 : 269,365.28 = 105,768 : x
  2. Step 2: Convert to fraction form
    195,192/269,365.28 = 105,768/x
  3. Step 3: Cross multiply
    195,192x = 269,365.28 × 105,768
  4. Step 4: Simplify right side
    195,192x = 28,490,226,935.04
  5. Step 5: Solve for x
    x = 28,490,226,935.04/195,192
  6. Step 6: Final answer
    x = 145,960.01

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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.