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Finding the Fourth Proportional to 293,663.52, 405,318.72 and 178,979.52

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Solution

The fourth proportional to 293,663.52, 405,318.72 and 178,979.52 is: 247,030.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,663.52 : 405,318.72 = 178,979.52 : x
  2. Step 2: Convert to fraction form
    293,663.52/405,318.72 = 178,979.52/x
  3. Step 3: Cross multiply
    293,663.52x = 405,318.72 × 178,979.52
  4. Step 4: Simplify right side
    293,663.52x = 72,543,749,952.61
  5. Step 5: Solve for x
    x = 72,543,749,952.61/293,663.52
  6. Step 6: Final answer
    x = 247,030.17

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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.