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Finding the Fourth Proportional to 80,274.72, 110,780 and 44,465.28

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Solution

The fourth proportional to 80,274.72, 110,780 and 44,465.28 is: 61,362.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,274.72 : 110,780 = 44,465.28 : x
  2. Step 2: Convert to fraction form
    80,274.72/110,780 = 44,465.28/x
  3. Step 3: Cross multiply
    80,274.72x = 110,780 × 44,465.28
  4. Step 4: Simplify right side
    80,274.72x = 4,925,863,718.40
  5. Step 5: Solve for x
    x = 4,925,863,718.40/80,274.72
  6. Step 6: Final answer
    x = 61,362.58

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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.