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Finding the Fourth Proportional to 329,038.16, 493,552.44 and 79,718.48

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Solution

The fourth proportional to 329,038.16, 493,552.44 and 79,718.48 is: 119,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,038.16 : 493,552.44 = 79,718.48 : x
  2. Step 2: Convert to fraction form
    329,038.16/493,552.44 = 79,718.48/x
  3. Step 3: Cross multiply
    329,038.16x = 493,552.44 × 79,718.48
  4. Step 4: Simplify right side
    329,038.16x = 39,345,250,317.09
  5. Step 5: Solve for x
    x = 39,345,250,317.09/329,038.16
  6. Step 6: Final answer
    x = 119,576.56

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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.