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Finding the Fourth Proportional to 124,366.80, 171,653.88 and 79,035.94

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Solution

The fourth proportional to 124,366.80, 171,653.88 and 79,035.94 is: 109,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,366.80 : 171,653.88 = 79,035.94 : x
  2. Step 2: Convert to fraction form
    124,366.80/171,653.88 = 79,035.94/x
  3. Step 3: Cross multiply
    124,366.80x = 171,653.88 × 79,035.94
  4. Step 4: Simplify right side
    124,366.80x = 13,566,825,760.45
  5. Step 5: Solve for x
    x = 13,566,825,760.45/124,366.80
  6. Step 6: Final answer
    x = 109,087.20

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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.