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Finding the Fourth Proportional to 229,855.55, 344,977.73 and 103,689.95

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Solution

The fourth proportional to 229,855.55, 344,977.73 and 103,689.95 is: 155,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,855.55 : 344,977.73 = 103,689.95 : x
  2. Step 2: Convert to fraction form
    229,855.55/344,977.73 = 103,689.95/x
  3. Step 3: Cross multiply
    229,855.55x = 344,977.73 × 103,689.95
  4. Step 4: Simplify right side
    229,855.55x = 35,770,723,574.81
  5. Step 5: Solve for x
    x = 35,770,723,574.81/229,855.55
  6. Step 6: Final answer
    x = 155,622.62

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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.