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Finding the Fourth Proportional to 235,039.04, 352,698.64 and 85,291.01

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Solution

The fourth proportional to 235,039.04, 352,698.64 and 85,291.01 is: 127,987.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,039.04 : 352,698.64 = 85,291.01 : x
  2. Step 2: Convert to fraction form
    235,039.04/352,698.64 = 85,291.01/x
  3. Step 3: Cross multiply
    235,039.04x = 352,698.64 × 85,291.01
  4. Step 4: Simplify right side
    235,039.04x = 30,082,021,467.73
  5. Step 5: Solve for x
    x = 30,082,021,467.73/235,039.04
  6. Step 6: Final answer
    x = 127,987.34

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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.