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Finding the Fourth Proportional to 329,461.73, 494,005.33 and 129,673.81

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Solution

The fourth proportional to 329,461.73, 494,005.33 and 129,673.81 is: 194,437.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,461.73 : 494,005.33 = 129,673.81 : x
  2. Step 2: Convert to fraction form
    329,461.73/494,005.33 = 129,673.81/x
  3. Step 3: Cross multiply
    329,461.73x = 494,005.33 × 129,673.81
  4. Step 4: Simplify right side
    329,461.73x = 64,059,554,081.01
  5. Step 5: Solve for x
    x = 64,059,554,081.01/329,461.73
  6. Step 6: Final answer
    x = 194,437.01

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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.