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Finding the Fourth Proportional to 329,123.04, 493,686.16 and 79,804.96

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Solution

The fourth proportional to 329,123.04, 493,686.16 and 79,804.96 is: 119,707.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,123.04 : 493,686.16 = 79,804.96 : x
  2. Step 2: Convert to fraction form
    329,123.04/493,686.16 = 79,804.96/x
  3. Step 3: Cross multiply
    329,123.04x = 493,686.16 × 79,804.96
  4. Step 4: Simplify right side
    329,123.04x = 39,398,604,251.35
  5. Step 5: Solve for x
    x = 39,398,604,251.35/329,123.04
  6. Step 6: Final answer
    x = 119,707.83

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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.