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Finding the Fourth Proportional to 77,960.40, 116,958.04 and 36,384.72

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Solution

The fourth proportional to 77,960.40, 116,958.04 and 36,384.72 is: 54,585.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,960.40 : 116,958.04 = 36,384.72 : x
  2. Step 2: Convert to fraction form
    77,960.40/116,958.04 = 36,384.72/x
  3. Step 3: Cross multiply
    77,960.40x = 116,958.04 × 36,384.72
  4. Step 4: Simplify right side
    77,960.40x = 4,255,485,537.15
  5. Step 5: Solve for x
    x = 4,255,485,537.15/77,960.40
  6. Step 6: Final answer
    x = 54,585.22

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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.