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Finding the Fourth Proportional to 72,303.15, 108,414.49 and 22,369.35

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Solution

The fourth proportional to 72,303.15, 108,414.49 and 22,369.35 is: 33,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,303.15 : 108,414.49 = 22,369.35 : x
  2. Step 2: Convert to fraction form
    72,303.15/108,414.49 = 22,369.35/x
  3. Step 3: Cross multiply
    72,303.15x = 108,414.49 × 22,369.35
  4. Step 4: Simplify right side
    72,303.15x = 2,425,161,671.88
  5. Step 5: Solve for x
    x = 2,425,161,671.88/72,303.15
  6. Step 6: Final answer
    x = 33,541.58

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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.