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Finding the Fourth Proportional to 107,463.80, 161,195.70 and 102,913.40

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Solution

The fourth proportional to 107,463.80, 161,195.70 and 102,913.40 is: 154,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,463.80 : 161,195.70 = 102,913.40 : x
  2. Step 2: Convert to fraction form
    107,463.80/161,195.70 = 102,913.40/x
  3. Step 3: Cross multiply
    107,463.80x = 161,195.70 × 102,913.40
  4. Step 4: Simplify right side
    107,463.80x = 16,589,197,552.38
  5. Step 5: Solve for x
    x = 16,589,197,552.38/107,463.80
  6. Step 6: Final answer
    x = 154,370.10

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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.