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Finding the Fourth Proportional to 529,220.12, 793,662.78 and 174,155

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Solution

The fourth proportional to 529,220.12, 793,662.78 and 174,155 is: 261,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,220.12 : 793,662.78 = 174,155 : x
  2. Step 2: Convert to fraction form
    529,220.12/793,662.78 = 174,155/x
  3. Step 3: Cross multiply
    529,220.12x = 793,662.78 × 174,155
  4. Step 4: Simplify right side
    529,220.12x = 138,220,341,450.90
  5. Step 5: Solve for x
    x = 138,220,341,450.90/529,220.12
  6. Step 6: Final answer
    x = 261,177.41

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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.