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Finding the Fourth Proportional to 108,369.28, 162,623.20 and 46,039.76

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Solution

The fourth proportional to 108,369.28, 162,623.20 and 46,039.76 is: 69,089.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,369.28 : 162,623.20 = 46,039.76 : x
  2. Step 2: Convert to fraction form
    108,369.28/162,623.20 = 46,039.76/x
  3. Step 3: Cross multiply
    108,369.28x = 162,623.20 × 46,039.76
  4. Step 4: Simplify right side
    108,369.28x = 7,487,133,098.43
  5. Step 5: Solve for x
    x = 7,487,133,098.43/108,369.28
  6. Step 6: Final answer
    x = 69,089.07

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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.