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Finding the Fourth Proportional to 72,362.40, 108,559.08 and 22,441.40

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Solution

The fourth proportional to 72,362.40, 108,559.08 and 22,441.40 is: 33,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,362.40 : 108,559.08 = 22,441.40 : x
  2. Step 2: Convert to fraction form
    72,362.40/108,559.08 = 22,441.40/x
  3. Step 3: Cross multiply
    72,362.40x = 108,559.08 × 22,441.40
  4. Step 4: Simplify right side
    72,362.40x = 2,436,217,737.91
  5. Step 5: Solve for x
    x = 2,436,217,737.91/72,362.40
  6. Step 6: Final answer
    x = 33,666.90

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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.