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Finding the Fourth Proportional to 323,962.79, 447,157.57 and 188,040.53

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Solution

The fourth proportional to 323,962.79, 447,157.57 and 188,040.53 is: 259,547.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,962.79 : 447,157.57 = 188,040.53 : x
  2. Step 2: Convert to fraction form
    323,962.79/447,157.57 = 188,040.53/x
  3. Step 3: Cross multiply
    323,962.79x = 447,157.57 × 188,040.53
  4. Step 4: Simplify right side
    323,962.79x = 84,083,744,220.52
  5. Step 5: Solve for x
    x = 84,083,744,220.52/323,962.79
  6. Step 6: Final answer
    x = 259,547.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.