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Finding the Fourth Proportional to 352,485.22, 486,430.22 and 191,340.38

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Solution

The fourth proportional to 352,485.22, 486,430.22 and 191,340.38 is: 264,050.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,485.22 : 486,430.22 = 191,340.38 : x
  2. Step 2: Convert to fraction form
    352,485.22/486,430.22 = 191,340.38/x
  3. Step 3: Cross multiply
    352,485.22x = 486,430.22 × 191,340.38
  4. Step 4: Simplify right side
    352,485.22x = 93,073,739,749.43
  5. Step 5: Solve for x
    x = 93,073,739,749.43/352,485.22
  6. Step 6: Final answer
    x = 264,050.05

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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.