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Finding the Fourth Proportional to 72,810.33, 109,220.19 and 22,892.36

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Solution

The fourth proportional to 72,810.33, 109,220.19 and 22,892.36 is: 34,340.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,810.33 : 109,220.19 = 22,892.36 : x
  2. Step 2: Convert to fraction form
    72,810.33/109,220.19 = 22,892.36/x
  3. Step 3: Cross multiply
    72,810.33x = 109,220.19 × 22,892.36
  4. Step 4: Simplify right side
    72,810.33x = 2,500,307,362.65
  5. Step 5: Solve for x
    x = 2,500,307,362.65/72,810.33
  6. Step 6: Final answer
    x = 34,340.01

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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.