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Finding the Fourth Proportional to 490,365.30, 735,546.86 and 130,536.23

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Solution

The fourth proportional to 490,365.30, 735,546.86 and 130,536.23 is: 195,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,365.30 : 735,546.86 = 130,536.23 : x
  2. Step 2: Convert to fraction form
    490,365.30/735,546.86 = 130,536.23/x
  3. Step 3: Cross multiply
    490,365.30x = 735,546.86 × 130,536.23
  4. Step 4: Simplify right side
    490,365.30x = 96,015,514,092.74
  5. Step 5: Solve for x
    x = 96,015,514,092.74/490,365.30
  6. Step 6: Final answer
    x = 195,804.05

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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.