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Finding the Fourth Proportional to 72,809.02, 109,213.40 and 22,893.47

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Solution

The fourth proportional to 72,809.02, 109,213.40 and 22,893.47 is: 34,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,809.02 : 109,213.40 = 22,893.47 : x
  2. Step 2: Convert to fraction form
    72,809.02/109,213.40 = 22,893.47/x
  3. Step 3: Cross multiply
    72,809.02x = 109,213.40 × 22,893.47
  4. Step 4: Simplify right side
    72,809.02x = 2,500,273,696.50
  5. Step 5: Solve for x
    x = 2,500,273,696.50/72,809.02
  6. Step 6: Final answer
    x = 34,340.16

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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.