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Finding the Fourth Proportional to 235,763.07, 353,644.71 and 77,991.52

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Solution

The fourth proportional to 235,763.07, 353,644.71 and 77,991.52 is: 116,987.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,763.07 : 353,644.71 = 77,991.52 : x
  2. Step 2: Convert to fraction form
    235,763.07/353,644.71 = 77,991.52/x
  3. Step 3: Cross multiply
    235,763.07x = 353,644.71 × 77,991.52
  4. Step 4: Simplify right side
    235,763.07x = 27,581,287,588.75
  5. Step 5: Solve for x
    x = 27,581,287,588.75/235,763.07
  6. Step 6: Final answer
    x = 116,987.31

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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.