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Finding the Fourth Proportional to 235,605.44, 353,521.68 and 117,287.20

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Solution

The fourth proportional to 235,605.44, 353,521.68 and 117,287.20 is: 175,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,605.44 : 353,521.68 = 117,287.20 : x
  2. Step 2: Convert to fraction form
    235,605.44/353,521.68 = 117,287.20/x
  3. Step 3: Cross multiply
    235,605.44x = 353,521.68 × 117,287.20
  4. Step 4: Simplify right side
    235,605.44x = 41,463,567,986.50
  5. Step 5: Solve for x
    x = 41,463,567,986.50/235,605.44
  6. Step 6: Final answer
    x = 175,987.31

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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.