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Finding the Fourth Proportional to 528,600.92, 792,894.28 and 129,245.13

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Solution

The fourth proportional to 528,600.92, 792,894.28 and 129,245.13 is: 193,865.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,600.92 : 792,894.28 = 129,245.13 : x
  2. Step 2: Convert to fraction form
    528,600.92/792,894.28 = 129,245.13/x
  3. Step 3: Cross multiply
    528,600.92x = 792,894.28 × 129,245.13
  4. Step 4: Simplify right side
    528,600.92x = 102,477,724,294.86
  5. Step 5: Solve for x
    x = 102,477,724,294.86/528,600.92
  6. Step 6: Final answer
    x = 193,865.96

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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.