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Finding the Fourth Proportional to 329,068.74, 493,603.11 and 79,750.74

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Solution

The fourth proportional to 329,068.74, 493,603.11 and 79,750.74 is: 119,626.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,068.74 : 493,603.11 = 79,750.74 : x
  2. Step 2: Convert to fraction form
    329,068.74/493,603.11 = 79,750.74/x
  3. Step 3: Cross multiply
    329,068.74x = 493,603.11 × 79,750.74
  4. Step 4: Simplify right side
    329,068.74x = 39,365,211,437.79
  5. Step 5: Solve for x
    x = 39,365,211,437.79/329,068.74
  6. Step 6: Final answer
    x = 119,626.11

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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.