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Finding the Fourth Proportional to 330,731.51, 496,143.63 and 106,039.13

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Solution

The fourth proportional to 330,731.51, 496,143.63 and 106,039.13 is: 159,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,731.51 : 496,143.63 = 106,039.13 : x
  2. Step 2: Convert to fraction form
    330,731.51/496,143.63 = 106,039.13/x
  3. Step 3: Cross multiply
    330,731.51x = 496,143.63 × 106,039.13
  4. Step 4: Simplify right side
    330,731.51x = 52,610,636,399.52
  5. Step 5: Solve for x
    x = 52,610,636,399.52/330,731.51
  6. Step 6: Final answer
    x = 159,073.56

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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.