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Finding the Fourth Proportional to 333,723.52, 500,579.92 and 81,006.08

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Solution

The fourth proportional to 333,723.52, 500,579.92 and 81,006.08 is: 121,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,723.52 : 500,579.92 = 81,006.08 : x
  2. Step 2: Convert to fraction form
    333,723.52/500,579.92 = 81,006.08/x
  3. Step 3: Cross multiply
    333,723.52x = 500,579.92 × 81,006.08
  4. Step 4: Simplify right side
    333,723.52x = 40,550,017,045.91
  5. Step 5: Solve for x
    x = 40,550,017,045.91/333,723.52
  6. Step 6: Final answer
    x = 121,507.82

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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.