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Finding the Fourth Proportional to 78,392.79, 117,501.66 and 33,952.95

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Solution

The fourth proportional to 78,392.79, 117,501.66 and 33,952.95 is: 50,891.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392.79 : 117,501.66 = 33,952.95 : x
  2. Step 2: Convert to fraction form
    78,392.79/117,501.66 = 33,952.95/x
  3. Step 3: Cross multiply
    78,392.79x = 117,501.66 × 33,952.95
  4. Step 4: Simplify right side
    78,392.79x = 3,989,527,986.90
  5. Step 5: Solve for x
    x = 3,989,527,986.90/78,392.79
  6. Step 6: Final answer
    x = 50,891.52

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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.