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Finding the Fourth Proportional to 116,855.76, 175,439.31 and 79,032.06

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Solution

The fourth proportional to 116,855.76, 175,439.31 and 79,032.06 is: 118,653.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,855.76 : 175,439.31 = 79,032.06 : x
  2. Step 2: Convert to fraction form
    116,855.76/175,439.31 = 79,032.06/x
  3. Step 3: Cross multiply
    116,855.76x = 175,439.31 × 79,032.06
  4. Step 4: Simplify right side
    116,855.76x = 13,865,330,074.28
  5. Step 5: Solve for x
    x = 13,865,330,074.28/116,855.76
  6. Step 6: Final answer
    x = 118,653.37

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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.