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Finding the Fourth Proportional to 235,763.44, 353,645.27 and 77,991.89

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Solution

The fourth proportional to 235,763.44, 353,645.27 and 77,991.89 is: 116,987.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,763.44 : 353,645.27 = 77,991.89 : x
  2. Step 2: Convert to fraction form
    235,763.44/353,645.27 = 77,991.89/x
  3. Step 3: Cross multiply
    235,763.44x = 353,645.27 × 77,991.89
  4. Step 4: Simplify right side
    235,763.44x = 27,581,464,075.95
  5. Step 5: Solve for x
    x = 27,581,464,075.95/235,763.44
  6. Step 6: Final answer
    x = 116,987.88

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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.