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Finding the Fourth Proportional to 72,908.66, 109,364.08 and 25,522.04

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Solution

The fourth proportional to 72,908.66, 109,364.08 and 25,522.04 is: 38,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,908.66 : 109,364.08 = 25,522.04 : x
  2. Step 2: Convert to fraction form
    72,908.66/109,364.08 = 25,522.04/x
  3. Step 3: Cross multiply
    72,908.66x = 109,364.08 × 25,522.04
  4. Step 4: Simplify right side
    72,908.66x = 2,791,194,424.32
  5. Step 5: Solve for x
    x = 2,791,194,424.32/72,908.66
  6. Step 6: Final answer
    x = 38,283.44

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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.