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Finding the Fourth Proportional to 77,399.55, 115,988.15 and 33,014.39

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Solution

The fourth proportional to 77,399.55, 115,988.15 and 33,014.39 is: 49,474.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,399.55 : 115,988.15 = 33,014.39 : x
  2. Step 2: Convert to fraction form
    77,399.55/115,988.15 = 33,014.39/x
  3. Step 3: Cross multiply
    77,399.55x = 115,988.15 × 33,014.39
  4. Step 4: Simplify right side
    77,399.55x = 3,829,277,522.07
  5. Step 5: Solve for x
    x = 3,829,277,522.07/77,399.55
  6. Step 6: Final answer
    x = 49,474.16

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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.