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Finding the Fourth Proportional to 333,178.81, 499,767.81 and 108,538.87

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Solution

The fourth proportional to 333,178.81, 499,767.81 and 108,538.87 is: 162,808.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,178.81 : 499,767.81 = 108,538.87 : x
  2. Step 2: Convert to fraction form
    333,178.81/499,767.81 = 108,538.87/x
  3. Step 3: Cross multiply
    333,178.81x = 499,767.81 × 108,538.87
  4. Step 4: Simplify right side
    333,178.81x = 54,244,233,359.77
  5. Step 5: Solve for x
    x = 54,244,233,359.77/333,178.81
  6. Step 6: Final answer
    x = 162,808.17

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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.