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Finding the Fourth Proportional to 528,600.42, 792,893.53 and 129,244.63

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Solution

The fourth proportional to 528,600.42, 792,893.53 and 129,244.63 is: 193,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,600.42 : 792,893.53 = 129,244.63 : x
  2. Step 2: Convert to fraction form
    528,600.42/792,893.53 = 129,244.63/x
  3. Step 3: Cross multiply
    528,600.42x = 792,893.53 × 129,244.63
  4. Step 4: Simplify right side
    528,600.42x = 102,477,230,914.24
  5. Step 5: Solve for x
    x = 102,477,230,914.24/528,600.42
  6. Step 6: Final answer
    x = 193,865.21

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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.