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Finding the Fourth Proportional to 216,663.72, 324,962.64 and 83,524.56

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Solution

The fourth proportional to 216,663.72, 324,962.64 and 83,524.56 is: 125,274.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,663.72 : 324,962.64 = 83,524.56 : x
  2. Step 2: Convert to fraction form
    216,663.72/324,962.64 = 83,524.56/x
  3. Step 3: Cross multiply
    216,663.72x = 324,962.64 × 83,524.56
  4. Step 4: Simplify right side
    216,663.72x = 27,142,361,522.44
  5. Step 5: Solve for x
    x = 27,142,361,522.44/216,663.72
  6. Step 6: Final answer
    x = 125,274.14

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1.5x scale

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.