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Finding the Fourth Proportional to 493,008.94, 739,439.09 and 156,005.81

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Solution

The fourth proportional to 493,008.94, 739,439.09 and 156,005.81 is: 233,985.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,008.94 : 739,439.09 = 156,005.81 : x
  2. Step 2: Convert to fraction form
    493,008.94/739,439.09 = 156,005.81/x
  3. Step 3: Cross multiply
    493,008.94x = 739,439.09 × 156,005.81
  4. Step 4: Simplify right side
    493,008.94x = 115,356,789,703.89
  5. Step 5: Solve for x
    x = 115,356,789,703.89/493,008.94
  6. Step 6: Final answer
    x = 233,985.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.