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Finding the Fourth Proportional to 99,359.70, 149,039.55 and 32,810.10

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Solution

The fourth proportional to 99,359.70, 149,039.55 and 32,810.10 is: 49,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,359.70 : 149,039.55 = 32,810.10 : x
  2. Step 2: Convert to fraction form
    99,359.70/149,039.55 = 32,810.10/x
  3. Step 3: Cross multiply
    99,359.70x = 149,039.55 × 32,810.10
  4. Step 4: Simplify right side
    99,359.70x = 4,890,002,539.46
  5. Step 5: Solve for x
    x = 4,890,002,539.46/99,359.70
  6. Step 6: Final answer
    x = 49,215.15

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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.