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Finding the Fourth Proportional to 72,959.04, 109,439.04 and 63,069.12

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Solution

The fourth proportional to 72,959.04, 109,439.04 and 63,069.12 is: 94,604.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,959.04 : 109,439.04 = 63,069.12 : x
  2. Step 2: Convert to fraction form
    72,959.04/109,439.04 = 63,069.12/x
  3. Step 3: Cross multiply
    72,959.04x = 109,439.04 × 63,069.12
  4. Step 4: Simplify right side
    72,959.04x = 6,902,223,946.44
  5. Step 5: Solve for x
    x = 6,902,223,946.44/72,959.04
  6. Step 6: Final answer
    x = 94,604.09

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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.