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Finding the Fourth Proportional to 91,166.80, 125,816.52 and 50,888.44

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Solution

The fourth proportional to 91,166.80, 125,816.52 and 50,888.44 is: 70,229.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,166.80 : 125,816.52 = 50,888.44 : x
  2. Step 2: Convert to fraction form
    91,166.80/125,816.52 = 50,888.44/x
  3. Step 3: Cross multiply
    91,166.80x = 125,816.52 × 50,888.44
  4. Step 4: Simplify right side
    91,166.80x = 6,402,606,429.03
  5. Step 5: Solve for x
    x = 6,402,606,429.03/91,166.80
  6. Step 6: Final answer
    x = 70,229.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.